/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/token_ring.10.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 17:53:43,084 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 17:53:43,133 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 17:53:43,137 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 17:53:43,137 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 17:53:43,166 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 17:53:43,167 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 17:53:43,168 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 17:53:43,168 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 17:53:43,171 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 17:53:43,171 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 17:53:43,172 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 17:53:43,172 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 17:53:43,173 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 17:53:43,173 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 17:53:43,174 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 17:53:43,174 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 17:53:43,174 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 17:53:43,174 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 17:53:43,174 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 17:53:43,174 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 17:53:43,175 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 17:53:43,175 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 17:53:43,175 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 17:53:43,175 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 17:53:43,175 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 17:53:43,175 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 17:53:43,176 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 17:53:43,176 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 17:53:43,176 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 17:53:43,177 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 17:53:43,177 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 17:53:43,177 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 17:53:43,177 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 17:53:43,177 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:53:43,177 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 17:53:43,177 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 17:53:43,177 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 17:53:43,177 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 17:53:43,177 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 17:53:43,178 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 17:53:43,178 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 17:53:43,178 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 17:53:43,178 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 17:53:43,178 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 17:53:43,178 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 17:53:43,178 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 17:53:43,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 17:53:43,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 17:53:43,390 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 17:53:43,391 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 17:53:43,391 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 17:53:43,392 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/token_ring.10.cil-1.c [2023-12-16 17:53:44,421 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 17:53:44,589 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 17:53:44,590 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/token_ring.10.cil-1.c [2023-12-16 17:53:44,600 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8add32787/edfe54521f4c45f3a00dd47d370a0be6/FLAG4e5399e21 [2023-12-16 17:53:44,617 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8add32787/edfe54521f4c45f3a00dd47d370a0be6 [2023-12-16 17:53:44,619 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 17:53:44,620 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 17:53:44,621 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 17:53:44,621 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 17:53:44,624 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 17:53:44,625 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:53:44" (1/1) ... [2023-12-16 17:53:44,626 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e9a38f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:53:44, skipping insertion in model container [2023-12-16 17:53:44,626 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:53:44" (1/1) ... [2023-12-16 17:53:44,664 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:53:44,777 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/token_ring.10.cil-1.c[671,684] [2023-12-16 17:53:44,894 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:53:44,919 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 17:53:44,933 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/token_ring.10.cil-1.c[671,684] [2023-12-16 17:53:45,042 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:53:45,061 INFO L206 MainTranslator]: Completed translation [2023-12-16 17:53:45,062 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:53:45 WrapperNode [2023-12-16 17:53:45,062 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 17:53:45,063 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 17:53:45,063 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 17:53:45,063 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 17:53:45,068 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:53:45" (1/1) ... [2023-12-16 17:53:45,079 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:53:45" (1/1) ... [2023-12-16 17:53:45,107 INFO L138 Inliner]: procedures = 48, calls = 62, calls flagged for inlining = 31, calls inlined = 31, statements flattened = 737 [2023-12-16 17:53:45,108 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 17:53:45,108 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 17:53:45,108 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 17:53:45,108 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 17:53:45,132 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:53:45" (1/1) ... [2023-12-16 17:53:45,132 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:53:45" (1/1) ... [2023-12-16 17:53:45,142 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:53:45" (1/1) ... [2023-12-16 17:53:45,164 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 17:53:45,164 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:53:45" (1/1) ... [2023-12-16 17:53:45,164 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:53:45" (1/1) ... [2023-12-16 17:53:45,174 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:53:45" (1/1) ... [2023-12-16 17:53:45,195 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:53:45" (1/1) ... [2023-12-16 17:53:45,197 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:53:45" (1/1) ... [2023-12-16 17:53:45,199 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:53:45" (1/1) ... [2023-12-16 17:53:45,202 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 17:53:45,203 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 17:53:45,203 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 17:53:45,203 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 17:53:45,203 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:53:45" (1/1) ... [2023-12-16 17:53:45,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:53:45,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 17:53:45,247 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 17:53:45,259 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 17:53:45,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 17:53:45,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 17:53:45,285 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-12-16 17:53:45,285 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-12-16 17:53:45,285 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-16 17:53:45,285 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-16 17:53:45,285 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-16 17:53:45,285 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-16 17:53:45,286 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-16 17:53:45,286 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-16 17:53:45,286 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-16 17:53:45,286 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-16 17:53:45,286 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-16 17:53:45,286 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-16 17:53:45,286 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-16 17:53:45,286 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-16 17:53:45,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 17:53:45,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 17:53:45,374 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 17:53:45,376 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 17:53:45,958 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 17:53:46,014 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 17:53:46,015 INFO L309 CfgBuilder]: Removed 13 assume(true) statements. [2023-12-16 17:53:46,015 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:53:46 BoogieIcfgContainer [2023-12-16 17:53:46,015 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 17:53:46,016 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 17:53:46,017 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 17:53:46,019 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 17:53:46,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:53:44" (1/3) ... [2023-12-16 17:53:46,020 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d4dd595 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:53:46, skipping insertion in model container [2023-12-16 17:53:46,020 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:53:45" (2/3) ... [2023-12-16 17:53:46,020 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d4dd595 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:53:46, skipping insertion in model container [2023-12-16 17:53:46,020 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:53:46" (3/3) ... [2023-12-16 17:53:46,021 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.10.cil-1.c [2023-12-16 17:53:46,033 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 17:53:46,033 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 17:53:46,085 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 17:53:46,091 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;@27568727, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 17:53:46,091 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 17:53:46,097 INFO L276 IsEmpty]: Start isEmpty. Operand has 310 states, 275 states have (on average 1.7345454545454546) internal successors, (477), 279 states have internal predecessors, (477), 26 states have call successors, (26), 7 states have call predecessors, (26), 7 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) [2023-12-16 17:53:46,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 17:53:46,108 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:46,109 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] [2023-12-16 17:53:46,109 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:46,113 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:46,113 INFO L85 PathProgramCache]: Analyzing trace with hash -2146509589, now seen corresponding path program 1 times [2023-12-16 17:53:46,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:46,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [185515808] [2023-12-16 17:53:46,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:46,124 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 17:53:46,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:46,127 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 17:53:46,149 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 17:53:46,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:46,338 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:53:46,374 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:46,430 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 17:53:46,430 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:46,431 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:46,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [185515808] [2023-12-16 17:53:46,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [185515808] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:46,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:46,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:53:46,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025850920] [2023-12-16 17:53:46,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:46,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:53:46,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:46,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:53:46,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:53:46,458 INFO L87 Difference]: Start difference. First operand has 310 states, 275 states have (on average 1.7345454545454546) internal successors, (477), 279 states have internal predecessors, (477), 26 states have call successors, (26), 7 states have call predecessors, (26), 7 states have return successors, (26), 25 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:46,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:46,561 INFO L93 Difference]: Finished difference Result 615 states and 1052 transitions. [2023-12-16 17:53:46,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:53:46,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 141 [2023-12-16 17:53:46,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:46,572 INFO L225 Difference]: With dead ends: 615 [2023-12-16 17:53:46,572 INFO L226 Difference]: Without dead ends: 307 [2023-12-16 17:53:46,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 139 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 17:53:46,578 INFO L413 NwaCegarLoop]: 460 mSDtfsCounter, 494 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:46,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 460 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:53:46,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2023-12-16 17:53:46,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 307. [2023-12-16 17:53:46,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 274 states have (on average 1.6313868613138687) internal successors, (447), 276 states have internal predecessors, (447), 26 states have call successors, (26), 7 states have call predecessors, (26), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-16 17:53:46,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 497 transitions. [2023-12-16 17:53:46,638 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 497 transitions. Word has length 141 [2023-12-16 17:53:46,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:46,640 INFO L495 AbstractCegarLoop]: Abstraction has 307 states and 497 transitions. [2023-12-16 17:53:46,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:46,641 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 497 transitions. [2023-12-16 17:53:46,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 17:53:46,643 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:46,643 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] [2023-12-16 17:53:46,656 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 17:53:46,850 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 17:53:46,851 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:46,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:46,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1730569005, now seen corresponding path program 1 times [2023-12-16 17:53:46,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:46,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1165888789] [2023-12-16 17:53:46,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:46,852 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 17:53:46,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:46,858 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 17:53:46,859 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 17:53:47,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:47,032 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:53:47,036 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:47,063 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 17:53:47,064 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:47,064 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:47,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1165888789] [2023-12-16 17:53:47,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1165888789] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:47,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:47,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:53:47,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128065603] [2023-12-16 17:53:47,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:47,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:53:47,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:47,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:53:47,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:53:47,067 INFO L87 Difference]: Start difference. First operand 307 states and 497 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:47,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:47,160 INFO L93 Difference]: Finished difference Result 602 states and 973 transitions. [2023-12-16 17:53:47,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:53:47,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 141 [2023-12-16 17:53:47,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:47,162 INFO L225 Difference]: With dead ends: 602 [2023-12-16 17:53:47,162 INFO L226 Difference]: Without dead ends: 307 [2023-12-16 17:53:47,163 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 139 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 17:53:47,164 INFO L413 NwaCegarLoop]: 458 mSDtfsCounter, 483 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:47,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 458 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:53:47,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2023-12-16 17:53:47,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 307. [2023-12-16 17:53:47,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 274 states have (on average 1.6277372262773722) internal successors, (446), 276 states have internal predecessors, (446), 26 states have call successors, (26), 7 states have call predecessors, (26), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-12-16 17:53:47,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 496 transitions. [2023-12-16 17:53:47,192 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 496 transitions. Word has length 141 [2023-12-16 17:53:47,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:47,192 INFO L495 AbstractCegarLoop]: Abstraction has 307 states and 496 transitions. [2023-12-16 17:53:47,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:47,192 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 496 transitions. [2023-12-16 17:53:47,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 17:53:47,194 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:47,194 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] [2023-12-16 17:53:47,198 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-16 17:53:47,399 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 17:53:47,399 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:47,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:47,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1979626641, now seen corresponding path program 1 times [2023-12-16 17:53:47,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:47,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1684171470] [2023-12-16 17:53:47,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:47,401 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 17:53:47,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:47,411 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 17:53:47,412 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 17:53:47,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:47,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:53:47,627 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:47,722 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 17:53:47,722 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:47,722 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:47,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1684171470] [2023-12-16 17:53:47,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1684171470] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:47,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:47,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:53:47,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643664724] [2023-12-16 17:53:47,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:47,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:53:47,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:47,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:53:47,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:53:47,724 INFO L87 Difference]: Start difference. First operand 307 states and 496 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:48,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:48,382 INFO L93 Difference]: Finished difference Result 930 states and 1517 transitions. [2023-12-16 17:53:48,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:53:48,384 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 141 [2023-12-16 17:53:48,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:48,388 INFO L225 Difference]: With dead ends: 930 [2023-12-16 17:53:48,388 INFO L226 Difference]: Without dead ends: 639 [2023-12-16 17:53:48,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 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 17:53:48,390 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 944 mSDsluCounter, 919 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 962 SdHoareTripleChecker+Valid, 1284 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:48,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [962 Valid, 1284 Invalid, 674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 17:53:48,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2023-12-16 17:53:48,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 612. [2023-12-16 17:53:48,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 553 states have (on average 1.6383363471971066) internal successors, (906), 556 states have internal predecessors, (906), 45 states have call successors, (45), 13 states have call predecessors, (45), 13 states have return successors, (44), 43 states have call predecessors, (44), 43 states have call successors, (44) [2023-12-16 17:53:48,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 995 transitions. [2023-12-16 17:53:48,414 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 995 transitions. Word has length 141 [2023-12-16 17:53:48,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:48,414 INFO L495 AbstractCegarLoop]: Abstraction has 612 states and 995 transitions. [2023-12-16 17:53:48,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:48,414 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 995 transitions. [2023-12-16 17:53:48,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 17:53:48,415 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:48,416 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] [2023-12-16 17:53:48,435 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 17:53:48,620 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 17:53:48,620 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:48,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:48,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1805366959, now seen corresponding path program 1 times [2023-12-16 17:53:48,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:48,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1992803204] [2023-12-16 17:53:48,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:48,621 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:48,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:48,637 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 17:53:48,661 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 17:53:48,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:48,770 INFO L262 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:53:48,773 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:48,827 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 17:53:48,827 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:48,827 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:48,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1992803204] [2023-12-16 17:53:48,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1992803204] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:48,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:48,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:53:48,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304379859] [2023-12-16 17:53:48,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:48,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:53:48,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:48,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:53:48,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:53:48,829 INFO L87 Difference]: Start difference. First operand 612 states and 995 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:49,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:49,207 INFO L93 Difference]: Finished difference Result 1208 states and 1970 transitions. [2023-12-16 17:53:49,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:53:49,207 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 141 [2023-12-16 17:53:49,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:49,209 INFO L225 Difference]: With dead ends: 1208 [2023-12-16 17:53:49,210 INFO L226 Difference]: Without dead ends: 612 [2023-12-16 17:53:49,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 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 17:53:49,214 INFO L413 NwaCegarLoop]: 313 mSDtfsCounter, 666 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:49,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [684 Valid, 803 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 17:53:49,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2023-12-16 17:53:49,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 612. [2023-12-16 17:53:49,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 553 states have (on average 1.6256781193490055) internal successors, (899), 556 states have internal predecessors, (899), 45 states have call successors, (45), 13 states have call predecessors, (45), 13 states have return successors, (44), 43 states have call predecessors, (44), 43 states have call successors, (44) [2023-12-16 17:53:49,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 988 transitions. [2023-12-16 17:53:49,243 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 988 transitions. Word has length 141 [2023-12-16 17:53:49,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:49,244 INFO L495 AbstractCegarLoop]: Abstraction has 612 states and 988 transitions. [2023-12-16 17:53:49,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:49,244 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 988 transitions. [2023-12-16 17:53:49,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 17:53:49,245 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:49,246 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] [2023-12-16 17:53:49,264 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 17:53:49,449 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 17:53:49,450 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:49,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:49,450 INFO L85 PathProgramCache]: Analyzing trace with hash -2090409105, now seen corresponding path program 1 times [2023-12-16 17:53:49,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:49,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [715071283] [2023-12-16 17:53:49,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:49,451 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 17:53:49,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:49,456 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 17:53:49,456 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 17:53:49,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:49,589 INFO L262 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:53:49,591 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:49,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:53:49,671 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:49,671 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:49,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [715071283] [2023-12-16 17:53:49,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [715071283] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:49,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:49,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:53:49,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216984662] [2023-12-16 17:53:49,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:49,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:53:49,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:49,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:53:49,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:53:49,673 INFO L87 Difference]: Start difference. First operand 612 states and 988 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:50,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:50,033 INFO L93 Difference]: Finished difference Result 1208 states and 1956 transitions. [2023-12-16 17:53:50,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:53:50,033 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 141 [2023-12-16 17:53:50,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:50,036 INFO L225 Difference]: With dead ends: 1208 [2023-12-16 17:53:50,036 INFO L226 Difference]: Without dead ends: 612 [2023-12-16 17:53:50,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 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 17:53:50,038 INFO L413 NwaCegarLoop]: 310 mSDtfsCounter, 660 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:50,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [678 Valid, 796 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 17:53:50,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2023-12-16 17:53:50,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 612. [2023-12-16 17:53:50,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 553 states have (on average 1.6130198915009042) internal successors, (892), 556 states have internal predecessors, (892), 45 states have call successors, (45), 13 states have call predecessors, (45), 13 states have return successors, (44), 43 states have call predecessors, (44), 43 states have call successors, (44) [2023-12-16 17:53:50,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 981 transitions. [2023-12-16 17:53:50,059 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 981 transitions. Word has length 141 [2023-12-16 17:53:50,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:50,059 INFO L495 AbstractCegarLoop]: Abstraction has 612 states and 981 transitions. [2023-12-16 17:53:50,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:50,060 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 981 transitions. [2023-12-16 17:53:50,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 17:53:50,060 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:50,061 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] [2023-12-16 17:53:50,065 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 17:53:50,264 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 17:53:50,267 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:50,267 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:50,267 INFO L85 PathProgramCache]: Analyzing trace with hash -1602361999, now seen corresponding path program 1 times [2023-12-16 17:53:50,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:50,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1299619907] [2023-12-16 17:53:50,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:50,268 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 17:53:50,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:50,269 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 17:53:50,280 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 17:53:50,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:50,390 INFO L262 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:53:50,392 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:50,443 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 17:53:50,443 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:50,443 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:50,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1299619907] [2023-12-16 17:53:50,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1299619907] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:50,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:50,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:53:50,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802778651] [2023-12-16 17:53:50,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:50,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:53:50,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:50,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:53:50,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:53:50,445 INFO L87 Difference]: Start difference. First operand 612 states and 981 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:50,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:50,829 INFO L93 Difference]: Finished difference Result 1208 states and 1942 transitions. [2023-12-16 17:53:50,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:53:50,830 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 141 [2023-12-16 17:53:50,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:50,832 INFO L225 Difference]: With dead ends: 1208 [2023-12-16 17:53:50,832 INFO L226 Difference]: Without dead ends: 612 [2023-12-16 17:53:50,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 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 17:53:50,834 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 653 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 671 SdHoareTripleChecker+Valid, 789 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:50,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [671 Valid, 789 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 17:53:50,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2023-12-16 17:53:50,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 612. [2023-12-16 17:53:50,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 553 states have (on average 1.6003616636528029) internal successors, (885), 556 states have internal predecessors, (885), 45 states have call successors, (45), 13 states have call predecessors, (45), 13 states have return successors, (44), 43 states have call predecessors, (44), 43 states have call successors, (44) [2023-12-16 17:53:50,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 974 transitions. [2023-12-16 17:53:50,855 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 974 transitions. Word has length 141 [2023-12-16 17:53:50,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:50,855 INFO L495 AbstractCegarLoop]: Abstraction has 612 states and 974 transitions. [2023-12-16 17:53:50,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:50,856 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 974 transitions. [2023-12-16 17:53:50,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 17:53:50,857 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:50,857 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] [2023-12-16 17:53:50,865 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 17:53:51,061 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 17:53:51,061 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:51,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:51,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1016066225, now seen corresponding path program 1 times [2023-12-16 17:53:51,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:51,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1996825140] [2023-12-16 17:53:51,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:51,062 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 17:53:51,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:51,064 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 17:53:51,093 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 17:53:51,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:51,178 INFO L262 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:53:51,180 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:51,237 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 17:53:51,237 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:51,237 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:51,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1996825140] [2023-12-16 17:53:51,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1996825140] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:51,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:51,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:53:51,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902796840] [2023-12-16 17:53:51,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:51,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:53:51,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:51,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:53:51,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:53:51,239 INFO L87 Difference]: Start difference. First operand 612 states and 974 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:51,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:51,627 INFO L93 Difference]: Finished difference Result 1208 states and 1928 transitions. [2023-12-16 17:53:51,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:53:51,628 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 141 [2023-12-16 17:53:51,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:51,630 INFO L225 Difference]: With dead ends: 1208 [2023-12-16 17:53:51,630 INFO L226 Difference]: Without dead ends: 612 [2023-12-16 17:53:51,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 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 17:53:51,631 INFO L413 NwaCegarLoop]: 304 mSDtfsCounter, 647 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 665 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:51,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [665 Valid, 782 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 17:53:51,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2023-12-16 17:53:51,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 612. [2023-12-16 17:53:51,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 553 states have (on average 1.5877034358047015) internal successors, (878), 556 states have internal predecessors, (878), 45 states have call successors, (45), 13 states have call predecessors, (45), 13 states have return successors, (44), 43 states have call predecessors, (44), 43 states have call successors, (44) [2023-12-16 17:53:51,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 967 transitions. [2023-12-16 17:53:51,669 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 967 transitions. Word has length 141 [2023-12-16 17:53:51,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:51,669 INFO L495 AbstractCegarLoop]: Abstraction has 612 states and 967 transitions. [2023-12-16 17:53:51,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:51,670 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 967 transitions. [2023-12-16 17:53:51,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 17:53:51,671 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:51,671 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] [2023-12-16 17:53:51,691 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 17:53:51,892 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 17:53:51,893 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:51,893 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:51,893 INFO L85 PathProgramCache]: Analyzing trace with hash -1670414991, now seen corresponding path program 1 times [2023-12-16 17:53:51,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:51,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1973608553] [2023-12-16 17:53:51,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:51,894 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 17:53:51,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:51,896 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 17:53:51,900 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 17:53:52,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:52,050 INFO L262 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:53:52,052 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:52,100 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 17:53:52,100 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:52,101 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:52,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1973608553] [2023-12-16 17:53:52,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1973608553] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:52,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:52,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:53:52,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536344283] [2023-12-16 17:53:52,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:52,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:53:52,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:52,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:53:52,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:53:52,102 INFO L87 Difference]: Start difference. First operand 612 states and 967 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:52,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:52,544 INFO L93 Difference]: Finished difference Result 1208 states and 1914 transitions. [2023-12-16 17:53:52,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:53:52,544 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 141 [2023-12-16 17:53:52,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:52,547 INFO L225 Difference]: With dead ends: 1208 [2023-12-16 17:53:52,547 INFO L226 Difference]: Without dead ends: 612 [2023-12-16 17:53:52,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 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 17:53:52,560 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 641 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 775 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:52,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 775 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:53:52,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2023-12-16 17:53:52,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 612. [2023-12-16 17:53:52,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 553 states have (on average 1.5750452079566004) internal successors, (871), 556 states have internal predecessors, (871), 45 states have call successors, (45), 13 states have call predecessors, (45), 13 states have return successors, (44), 43 states have call predecessors, (44), 43 states have call successors, (44) [2023-12-16 17:53:52,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 960 transitions. [2023-12-16 17:53:52,602 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 960 transitions. Word has length 141 [2023-12-16 17:53:52,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:52,602 INFO L495 AbstractCegarLoop]: Abstraction has 612 states and 960 transitions. [2023-12-16 17:53:52,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:52,602 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 960 transitions. [2023-12-16 17:53:52,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 17:53:52,603 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:52,603 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] [2023-12-16 17:53:52,628 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 17:53:52,803 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 17:53:52,804 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:52,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:52,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1341433679, now seen corresponding path program 1 times [2023-12-16 17:53:52,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:52,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1103518947] [2023-12-16 17:53:52,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:52,805 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 17:53:52,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:52,806 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 17:53:52,807 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 17:53:52,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:52,915 INFO L262 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:53:52,917 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:52,993 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 17:53:52,993 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:52,993 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:52,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1103518947] [2023-12-16 17:53:52,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1103518947] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:52,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:52,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:53:52,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612258531] [2023-12-16 17:53:52,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:52,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:53:52,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:52,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:53:52,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:53:52,995 INFO L87 Difference]: Start difference. First operand 612 states and 960 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:53,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:53,355 INFO L93 Difference]: Finished difference Result 1208 states and 1900 transitions. [2023-12-16 17:53:53,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:53:53,359 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 141 [2023-12-16 17:53:53,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:53,362 INFO L225 Difference]: With dead ends: 1208 [2023-12-16 17:53:53,362 INFO L226 Difference]: Without dead ends: 612 [2023-12-16 17:53:53,366 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 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 17:53:53,368 INFO L413 NwaCegarLoop]: 298 mSDtfsCounter, 635 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 768 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:53,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 768 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 17:53:53,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2023-12-16 17:53:53,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 612. [2023-12-16 17:53:53,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 553 states have (on average 1.562386980108499) internal successors, (864), 556 states have internal predecessors, (864), 45 states have call successors, (45), 13 states have call predecessors, (45), 13 states have return successors, (44), 43 states have call predecessors, (44), 43 states have call successors, (44) [2023-12-16 17:53:53,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 953 transitions. [2023-12-16 17:53:53,395 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 953 transitions. Word has length 141 [2023-12-16 17:53:53,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:53,397 INFO L495 AbstractCegarLoop]: Abstraction has 612 states and 953 transitions. [2023-12-16 17:53:53,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:53,397 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 953 transitions. [2023-12-16 17:53:53,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 17:53:53,399 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:53,399 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] [2023-12-16 17:53:53,418 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 (10)] Ended with exit code 0 [2023-12-16 17:53:53,603 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 17:53:53,603 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:53,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:53,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1746463375, now seen corresponding path program 1 times [2023-12-16 17:53:53,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:53,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1126421668] [2023-12-16 17:53:53,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:53,607 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 17:53:53,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:53,608 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 17:53:53,613 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 17:53:53,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:53,716 INFO L262 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:53:53,719 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:53,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:53:53,762 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:53,762 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:53,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1126421668] [2023-12-16 17:53:53,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1126421668] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:53,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:53,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:53:53,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963980230] [2023-12-16 17:53:53,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:53,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:53:53,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:53,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:53:53,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:53:53,763 INFO L87 Difference]: Start difference. First operand 612 states and 953 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:54,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:54,141 INFO L93 Difference]: Finished difference Result 1208 states and 1886 transitions. [2023-12-16 17:53:54,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:53:54,142 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 141 [2023-12-16 17:53:54,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:54,144 INFO L225 Difference]: With dead ends: 1208 [2023-12-16 17:53:54,144 INFO L226 Difference]: Without dead ends: 612 [2023-12-16 17:53:54,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 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 17:53:54,146 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 629 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 761 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:54,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [647 Valid, 761 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 17:53:54,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2023-12-16 17:53:54,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 612. [2023-12-16 17:53:54,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 553 states have (on average 1.5497287522603977) internal successors, (857), 556 states have internal predecessors, (857), 45 states have call successors, (45), 13 states have call predecessors, (45), 13 states have return successors, (44), 43 states have call predecessors, (44), 43 states have call successors, (44) [2023-12-16 17:53:54,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 946 transitions. [2023-12-16 17:53:54,167 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 946 transitions. Word has length 141 [2023-12-16 17:53:54,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:54,167 INFO L495 AbstractCegarLoop]: Abstraction has 612 states and 946 transitions. [2023-12-16 17:53:54,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:54,168 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 946 transitions. [2023-12-16 17:53:54,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 17:53:54,168 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:54,169 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] [2023-12-16 17:53:54,174 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 17:53:54,372 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 17:53:54,372 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:54,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:54,373 INFO L85 PathProgramCache]: Analyzing trace with hash 457228465, now seen corresponding path program 1 times [2023-12-16 17:53:54,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:54,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [687158286] [2023-12-16 17:53:54,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:54,373 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 17:53:54,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:54,374 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 17:53:54,404 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 17:53:54,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:54,483 INFO L262 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:53:54,486 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:54,574 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 17:53:54,575 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:54,575 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:54,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [687158286] [2023-12-16 17:53:54,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [687158286] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:54,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:54,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:53:54,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712986349] [2023-12-16 17:53:54,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:54,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:53:54,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:54,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:53:54,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:53:54,577 INFO L87 Difference]: Start difference. First operand 612 states and 946 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:54,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:54,879 INFO L93 Difference]: Finished difference Result 1208 states and 1872 transitions. [2023-12-16 17:53:54,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:53:54,879 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 141 [2023-12-16 17:53:54,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:54,882 INFO L225 Difference]: With dead ends: 1208 [2023-12-16 17:53:54,882 INFO L226 Difference]: Without dead ends: 612 [2023-12-16 17:53:54,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 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 17:53:54,883 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 623 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 641 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:54,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [641 Valid, 754 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 17:53:54,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2023-12-16 17:53:54,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 612. [2023-12-16 17:53:54,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 553 states have (on average 1.5370705244122966) internal successors, (850), 556 states have internal predecessors, (850), 45 states have call successors, (45), 13 states have call predecessors, (45), 13 states have return successors, (44), 43 states have call predecessors, (44), 43 states have call successors, (44) [2023-12-16 17:53:54,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 939 transitions. [2023-12-16 17:53:54,908 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 939 transitions. Word has length 141 [2023-12-16 17:53:54,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:54,908 INFO L495 AbstractCegarLoop]: Abstraction has 612 states and 939 transitions. [2023-12-16 17:53:54,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:54,908 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 939 transitions. [2023-12-16 17:53:54,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 17:53:54,909 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:54,909 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] [2023-12-16 17:53:54,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-16 17:53:55,113 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 17:53:55,113 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:55,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:55,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1134252687, now seen corresponding path program 1 times [2023-12-16 17:53:55,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:55,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [665442800] [2023-12-16 17:53:55,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:55,114 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 17:53:55,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:55,116 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 17:53:55,117 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 17:53:55,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:55,232 INFO L262 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:53:55,237 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:55,289 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 17:53:55,289 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:55,289 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:55,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [665442800] [2023-12-16 17:53:55,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [665442800] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:55,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:55,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:53:55,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716004962] [2023-12-16 17:53:55,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:55,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:53:55,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:55,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:53:55,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:53:55,291 INFO L87 Difference]: Start difference. First operand 612 states and 939 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:55,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:55,652 INFO L93 Difference]: Finished difference Result 1208 states and 1858 transitions. [2023-12-16 17:53:55,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:53:55,653 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 141 [2023-12-16 17:53:55,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:55,655 INFO L225 Difference]: With dead ends: 1208 [2023-12-16 17:53:55,655 INFO L226 Difference]: Without dead ends: 612 [2023-12-16 17:53:55,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 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 17:53:55,656 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 617 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 635 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:55,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [635 Valid, 747 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 17:53:55,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2023-12-16 17:53:55,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 612. [2023-12-16 17:53:55,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 553 states have (on average 1.5244122965641953) internal successors, (843), 556 states have internal predecessors, (843), 45 states have call successors, (45), 13 states have call predecessors, (45), 13 states have return successors, (44), 43 states have call predecessors, (44), 43 states have call successors, (44) [2023-12-16 17:53:55,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 932 transitions. [2023-12-16 17:53:55,682 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 932 transitions. Word has length 141 [2023-12-16 17:53:55,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:55,682 INFO L495 AbstractCegarLoop]: Abstraction has 612 states and 932 transitions. [2023-12-16 17:53:55,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:55,683 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 932 transitions. [2023-12-16 17:53:55,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 17:53:55,683 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:55,683 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] [2023-12-16 17:53:55,687 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 (13)] Forceful destruction successful, exit code 0 [2023-12-16 17:53:55,887 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 17:53:55,888 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:55,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:55,888 INFO L85 PathProgramCache]: Analyzing trace with hash 592892275, now seen corresponding path program 1 times [2023-12-16 17:53:55,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:55,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1681287325] [2023-12-16 17:53:55,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:55,889 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 17:53:55,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:55,898 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 17:53:55,925 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 17:53:56,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:56,005 INFO L262 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:53:56,008 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:56,059 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 17:53:56,060 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:56,060 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:56,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1681287325] [2023-12-16 17:53:56,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1681287325] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:56,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:56,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:53:56,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600083376] [2023-12-16 17:53:56,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:56,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:53:56,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:56,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:53:56,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:53:56,061 INFO L87 Difference]: Start difference. First operand 612 states and 932 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:56,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:56,492 INFO L93 Difference]: Finished difference Result 1350 states and 2076 transitions. [2023-12-16 17:53:56,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:53:56,492 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 141 [2023-12-16 17:53:56,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:56,495 INFO L225 Difference]: With dead ends: 1350 [2023-12-16 17:53:56,495 INFO L226 Difference]: Without dead ends: 754 [2023-12-16 17:53:56,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 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 17:53:56,497 INFO L413 NwaCegarLoop]: 287 mSDtfsCounter, 706 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 545 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 545 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:56,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [724 Valid, 741 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 545 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:53:56,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2023-12-16 17:53:56,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 754. [2023-12-16 17:53:56,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 689 states have (on average 1.5036284470246735) internal successors, (1036), 692 states have internal predecessors, (1036), 47 states have call successors, (47), 17 states have call predecessors, (47), 17 states have return successors, (46), 45 states have call predecessors, (46), 45 states have call successors, (46) [2023-12-16 17:53:56,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 1129 transitions. [2023-12-16 17:53:56,566 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 1129 transitions. Word has length 141 [2023-12-16 17:53:56,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:56,566 INFO L495 AbstractCegarLoop]: Abstraction has 754 states and 1129 transitions. [2023-12-16 17:53:56,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:56,566 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 1129 transitions. [2023-12-16 17:53:56,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 17:53:56,567 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:56,567 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] [2023-12-16 17:53:56,600 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 17:53:56,771 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 17:53:56,771 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:56,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:56,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1563943757, now seen corresponding path program 1 times [2023-12-16 17:53:56,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:56,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1084252718] [2023-12-16 17:53:56,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:56,772 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:56,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:56,774 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 17:53:56,775 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 17:53:56,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:56,874 INFO L262 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:53:56,876 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:56,936 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 17:53:56,936 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:56,936 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:56,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1084252718] [2023-12-16 17:53:56,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1084252718] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:56,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:56,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:53:56,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42707815] [2023-12-16 17:53:56,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:56,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:53:56,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:56,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:53:56,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:53:56,938 INFO L87 Difference]: Start difference. First operand 754 states and 1129 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:57,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:57,378 INFO L93 Difference]: Finished difference Result 1634 states and 2470 transitions. [2023-12-16 17:53:57,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:53:57,378 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 141 [2023-12-16 17:53:57,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:57,381 INFO L225 Difference]: With dead ends: 1634 [2023-12-16 17:53:57,381 INFO L226 Difference]: Without dead ends: 896 [2023-12-16 17:53:57,383 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 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 17:53:57,384 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 700 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 718 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:57,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [718 Valid, 734 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:53:57,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2023-12-16 17:53:57,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 896. [2023-12-16 17:53:57,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 896 states, 825 states have (on average 1.4848484848484849) internal successors, (1225), 828 states have internal predecessors, (1225), 49 states have call successors, (49), 21 states have call predecessors, (49), 21 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-16 17:53:57,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1322 transitions. [2023-12-16 17:53:57,417 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1322 transitions. Word has length 141 [2023-12-16 17:53:57,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:57,417 INFO L495 AbstractCegarLoop]: Abstraction has 896 states and 1322 transitions. [2023-12-16 17:53:57,418 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:57,418 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1322 transitions. [2023-12-16 17:53:57,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 17:53:57,418 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:57,418 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] [2023-12-16 17:53:57,438 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 17:53:57,622 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 17:53:57,623 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:57,623 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:57,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1037660660, now seen corresponding path program 1 times [2023-12-16 17:53:57,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:57,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1461728811] [2023-12-16 17:53:57,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:57,624 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:57,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:57,625 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 17:53:57,627 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 17:53:57,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:57,725 INFO L262 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:53:57,737 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:57,797 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 17:53:57,797 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:57,797 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:57,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1461728811] [2023-12-16 17:53:57,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1461728811] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:57,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:57,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:53:57,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50998531] [2023-12-16 17:53:57,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:57,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:53:57,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:57,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:53:57,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:53:57,812 INFO L87 Difference]: Start difference. First operand 896 states and 1322 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:58,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:58,259 INFO L93 Difference]: Finished difference Result 1918 states and 2856 transitions. [2023-12-16 17:53:58,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:53:58,260 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 141 [2023-12-16 17:53:58,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:58,263 INFO L225 Difference]: With dead ends: 1918 [2023-12-16 17:53:58,263 INFO L226 Difference]: Without dead ends: 1038 [2023-12-16 17:53:58,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 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 17:53:58,265 INFO L413 NwaCegarLoop]: 281 mSDtfsCounter, 693 mSDsluCounter, 446 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:58,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 727 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:53:58,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2023-12-16 17:53:58,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1038. [2023-12-16 17:53:58,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1038 states, 961 states have (on average 1.4672216441207075) internal successors, (1410), 964 states have internal predecessors, (1410), 51 states have call successors, (51), 25 states have call predecessors, (51), 25 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-16 17:53:58,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1038 states to 1038 states and 1511 transitions. [2023-12-16 17:53:58,306 INFO L78 Accepts]: Start accepts. Automaton has 1038 states and 1511 transitions. Word has length 141 [2023-12-16 17:53:58,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:58,306 INFO L495 AbstractCegarLoop]: Abstraction has 1038 states and 1511 transitions. [2023-12-16 17:53:58,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:58,306 INFO L276 IsEmpty]: Start isEmpty. Operand 1038 states and 1511 transitions. [2023-12-16 17:53:58,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 17:53:58,307 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:58,307 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] [2023-12-16 17:53:58,316 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 (16)] Ended with exit code 0 [2023-12-16 17:53:58,510 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 17:53:58,510 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:58,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:58,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1923713005, now seen corresponding path program 1 times [2023-12-16 17:53:58,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:58,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [183262294] [2023-12-16 17:53:58,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:58,511 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 17:53:58,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:58,512 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 17:53:58,515 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 17:53:58,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:58,610 INFO L262 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:53:58,612 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:58,662 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 17:53:58,662 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:58,662 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:58,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [183262294] [2023-12-16 17:53:58,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [183262294] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:58,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:58,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:53:58,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454416729] [2023-12-16 17:53:58,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:58,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:53:58,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:58,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:53:58,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:53:58,663 INFO L87 Difference]: Start difference. First operand 1038 states and 1511 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:59,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:59,124 INFO L93 Difference]: Finished difference Result 2202 states and 3234 transitions. [2023-12-16 17:53:59,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:53:59,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 141 [2023-12-16 17:53:59,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:59,139 INFO L225 Difference]: With dead ends: 2202 [2023-12-16 17:53:59,139 INFO L226 Difference]: Without dead ends: 1180 [2023-12-16 17:53:59,142 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 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 17:53:59,142 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 686 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:59,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 720 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 536 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:53:59,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1180 states. [2023-12-16 17:53:59,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1180 to 1180. [2023-12-16 17:53:59,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1180 states, 1097 states have (on average 1.4503190519598905) internal successors, (1591), 1100 states have internal predecessors, (1591), 53 states have call successors, (53), 29 states have call predecessors, (53), 29 states have return successors, (52), 51 states have call predecessors, (52), 51 states have call successors, (52) [2023-12-16 17:53:59,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 1696 transitions. [2023-12-16 17:53:59,183 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 1696 transitions. Word has length 141 [2023-12-16 17:53:59,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:59,184 INFO L495 AbstractCegarLoop]: Abstraction has 1180 states and 1696 transitions. [2023-12-16 17:53:59,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:59,184 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 1696 transitions. [2023-12-16 17:53:59,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 17:53:59,184 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:59,184 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] [2023-12-16 17:53:59,198 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 17:53:59,389 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 17:53:59,389 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:59,389 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:59,389 INFO L85 PathProgramCache]: Analyzing trace with hash 538637523, now seen corresponding path program 1 times [2023-12-16 17:53:59,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:59,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1774166088] [2023-12-16 17:53:59,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:59,390 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 17:53:59,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:59,391 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 17:53:59,404 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 17:53:59,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:59,494 INFO L262 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:53:59,496 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:59,542 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 17:53:59,542 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:59,543 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:59,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1774166088] [2023-12-16 17:53:59,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1774166088] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:59,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:59,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:53:59,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462619232] [2023-12-16 17:53:59,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:59,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:53:59,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:59,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:53:59,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:53:59,545 INFO L87 Difference]: Start difference. First operand 1180 states and 1696 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:54:00,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:54:00,114 INFO L93 Difference]: Finished difference Result 2486 states and 3604 transitions. [2023-12-16 17:54:00,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:54:00,115 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 141 [2023-12-16 17:54:00,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:54:00,119 INFO L225 Difference]: With dead ends: 2486 [2023-12-16 17:54:00,119 INFO L226 Difference]: Without dead ends: 1322 [2023-12-16 17:54:00,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 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 17:54:00,121 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 679 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:54:00,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [697 Valid, 713 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 17:54:00,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1322 states. [2023-12-16 17:54:00,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1322 to 1322. [2023-12-16 17:54:00,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1322 states, 1233 states have (on average 1.4339010543390105) internal successors, (1768), 1236 states have internal predecessors, (1768), 55 states have call successors, (55), 33 states have call predecessors, (55), 33 states have return successors, (54), 53 states have call predecessors, (54), 53 states have call successors, (54) [2023-12-16 17:54:00,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1322 states to 1322 states and 1877 transitions. [2023-12-16 17:54:00,177 INFO L78 Accepts]: Start accepts. Automaton has 1322 states and 1877 transitions. Word has length 141 [2023-12-16 17:54:00,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:54:00,178 INFO L495 AbstractCegarLoop]: Abstraction has 1322 states and 1877 transitions. [2023-12-16 17:54:00,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:54:00,178 INFO L276 IsEmpty]: Start isEmpty. Operand 1322 states and 1877 transitions. [2023-12-16 17:54:00,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 17:54:00,179 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:54:00,179 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] [2023-12-16 17:54:00,192 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2023-12-16 17:54:00,383 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 17:54:00,384 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:54:00,384 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:54:00,384 INFO L85 PathProgramCache]: Analyzing trace with hash 2072315314, now seen corresponding path program 1 times [2023-12-16 17:54:00,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:54:00,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [261293236] [2023-12-16 17:54:00,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:54:00,385 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 17:54:00,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:54:00,386 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 17:54:00,387 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 17:54:00,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:54:00,480 INFO L262 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:54:00,482 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:54:00,543 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 17:54:00,543 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:54:00,543 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:54:00,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [261293236] [2023-12-16 17:54:00,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [261293236] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:54:00,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:54:00,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:54:00,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783793272] [2023-12-16 17:54:00,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:54:00,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:54:00,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:54:00,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:54:00,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:54:00,547 INFO L87 Difference]: Start difference. First operand 1322 states and 1877 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:54:01,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:54:01,044 INFO L93 Difference]: Finished difference Result 2770 states and 3966 transitions. [2023-12-16 17:54:01,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:54:01,045 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 141 [2023-12-16 17:54:01,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:54:01,048 INFO L225 Difference]: With dead ends: 2770 [2023-12-16 17:54:01,048 INFO L226 Difference]: Without dead ends: 1464 [2023-12-16 17:54:01,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 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 17:54:01,051 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 672 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 690 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:54:01,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [690 Valid, 706 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:54:01,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1464 states. [2023-12-16 17:54:01,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1464 to 1464. [2023-12-16 17:54:01,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1464 states, 1369 states have (on average 1.4178232286340395) internal successors, (1941), 1372 states have internal predecessors, (1941), 57 states have call successors, (57), 37 states have call predecessors, (57), 37 states have return successors, (56), 55 states have call predecessors, (56), 55 states have call successors, (56) [2023-12-16 17:54:01,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 2054 transitions. [2023-12-16 17:54:01,108 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 2054 transitions. Word has length 141 [2023-12-16 17:54:01,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:54:01,108 INFO L495 AbstractCegarLoop]: Abstraction has 1464 states and 2054 transitions. [2023-12-16 17:54:01,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:54:01,108 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 2054 transitions. [2023-12-16 17:54:01,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 17:54:01,109 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:54:01,109 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] [2023-12-16 17:54:01,125 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 (19)] Ended with exit code 0 [2023-12-16 17:54:01,312 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 17:54:01,313 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:54:01,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:54:01,313 INFO L85 PathProgramCache]: Analyzing trace with hash -356404622, now seen corresponding path program 1 times [2023-12-16 17:54:01,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:54:01,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1544732532] [2023-12-16 17:54:01,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:54:01,314 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 17:54:01,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:54:01,315 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 17:54:01,318 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 17:54:01,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:54:01,418 INFO L262 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:54:01,420 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:54:01,471 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 17:54:01,471 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:54:01,471 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:54:01,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1544732532] [2023-12-16 17:54:01,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1544732532] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:54:01,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:54:01,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:54:01,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136202956] [2023-12-16 17:54:01,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:54:01,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:54:01,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:54:01,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:54:01,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:54:01,473 INFO L87 Difference]: Start difference. First operand 1464 states and 2054 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:54:01,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:54:01,944 INFO L93 Difference]: Finished difference Result 3054 states and 4320 transitions. [2023-12-16 17:54:01,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:54:01,945 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 141 [2023-12-16 17:54:01,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:54:01,949 INFO L225 Difference]: With dead ends: 3054 [2023-12-16 17:54:01,949 INFO L226 Difference]: Without dead ends: 1606 [2023-12-16 17:54:01,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 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 17:54:01,951 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 665 mSDsluCounter, 430 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 683 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:54:01,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [683 Valid, 699 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:54:01,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2023-12-16 17:54:02,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1606. [2023-12-16 17:54:02,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1505 states have (on average 1.4019933554817277) internal successors, (2110), 1508 states have internal predecessors, (2110), 59 states have call successors, (59), 41 states have call predecessors, (59), 41 states have return successors, (58), 57 states have call predecessors, (58), 57 states have call successors, (58) [2023-12-16 17:54:02,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 2227 transitions. [2023-12-16 17:54:02,011 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 2227 transitions. Word has length 141 [2023-12-16 17:54:02,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:54:02,011 INFO L495 AbstractCegarLoop]: Abstraction has 1606 states and 2227 transitions. [2023-12-16 17:54:02,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:54:02,011 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 2227 transitions. [2023-12-16 17:54:02,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 17:54:02,012 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:54:02,012 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] [2023-12-16 17:54:02,019 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 17:54:02,219 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 17:54:02,220 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:54:02,220 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:54:02,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1581762771, now seen corresponding path program 1 times [2023-12-16 17:54:02,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:54:02,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1579183542] [2023-12-16 17:54:02,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:54:02,221 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 17:54:02,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:54:02,222 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 17:54:02,223 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 17:54:02,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:54:02,338 INFO L262 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:54:02,340 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:54:02,400 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 17:54:02,401 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:54:02,401 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:54:02,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1579183542] [2023-12-16 17:54:02,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1579183542] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:54:02,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:54:02,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:54:02,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316340522] [2023-12-16 17:54:02,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:54:02,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:54:02,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:54:02,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:54:02,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:54:02,402 INFO L87 Difference]: Start difference. First operand 1606 states and 2227 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:54:02,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:54:02,920 INFO L93 Difference]: Finished difference Result 3338 states and 4666 transitions. [2023-12-16 17:54:02,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:54:02,924 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 141 [2023-12-16 17:54:02,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:54:02,929 INFO L225 Difference]: With dead ends: 3338 [2023-12-16 17:54:02,929 INFO L226 Difference]: Without dead ends: 1748 [2023-12-16 17:54:02,931 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 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 17:54:02,931 INFO L413 NwaCegarLoop]: 266 mSDtfsCounter, 657 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:54:02,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [675 Valid, 692 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:54:02,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1748 states. [2023-12-16 17:54:02,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1748 to 1748. [2023-12-16 17:54:02,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1748 states, 1641 states have (on average 1.3863497867154175) internal successors, (2275), 1644 states have internal predecessors, (2275), 61 states have call successors, (61), 45 states have call predecessors, (61), 45 states have return successors, (60), 59 states have call predecessors, (60), 59 states have call successors, (60) [2023-12-16 17:54:02,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1748 states to 1748 states and 2396 transitions. [2023-12-16 17:54:02,994 INFO L78 Accepts]: Start accepts. Automaton has 1748 states and 2396 transitions. Word has length 141 [2023-12-16 17:54:02,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:54:02,995 INFO L495 AbstractCegarLoop]: Abstraction has 1748 states and 2396 transitions. [2023-12-16 17:54:02,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:54:02,995 INFO L276 IsEmpty]: Start isEmpty. Operand 1748 states and 2396 transitions. [2023-12-16 17:54:02,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 17:54:02,995 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:54:02,996 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] [2023-12-16 17:54:03,000 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 17:54:03,199 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 17:54:03,200 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:54:03,200 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:54:03,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1970847950, now seen corresponding path program 1 times [2023-12-16 17:54:03,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:54:03,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [557423050] [2023-12-16 17:54:03,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:54:03,201 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 17:54:03,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:54:03,202 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 17:54:03,203 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 17:54:03,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:54:03,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:54:03,299 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:54:03,345 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 17:54:03,346 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:54:03,346 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:54:03,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [557423050] [2023-12-16 17:54:03,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [557423050] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:54:03,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:54:03,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:54:03,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287440547] [2023-12-16 17:54:03,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:54:03,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:54:03,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:54:03,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:54:03,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:54:03,347 INFO L87 Difference]: Start difference. First operand 1748 states and 2396 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:54:03,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:54:03,864 INFO L93 Difference]: Finished difference Result 3622 states and 5004 transitions. [2023-12-16 17:54:03,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:54:03,865 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 141 [2023-12-16 17:54:03,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:54:03,869 INFO L225 Difference]: With dead ends: 3622 [2023-12-16 17:54:03,869 INFO L226 Difference]: Without dead ends: 1890 [2023-12-16 17:54:03,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 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 17:54:03,872 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 650 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 668 SdHoareTripleChecker+Valid, 685 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:54:03,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [668 Valid, 685 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:54:03,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1890 states. [2023-12-16 17:54:03,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1890 to 1890. [2023-12-16 17:54:03,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1890 states, 1777 states have (on average 1.3708497467642093) internal successors, (2436), 1780 states have internal predecessors, (2436), 63 states have call successors, (63), 49 states have call predecessors, (63), 49 states have return successors, (62), 61 states have call predecessors, (62), 61 states have call successors, (62) [2023-12-16 17:54:03,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1890 states to 1890 states and 2561 transitions. [2023-12-16 17:54:03,957 INFO L78 Accepts]: Start accepts. Automaton has 1890 states and 2561 transitions. Word has length 141 [2023-12-16 17:54:03,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:54:03,957 INFO L495 AbstractCegarLoop]: Abstraction has 1890 states and 2561 transitions. [2023-12-16 17:54:03,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 4 states have internal predecessors, (130), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:54:03,958 INFO L276 IsEmpty]: Start isEmpty. Operand 1890 states and 2561 transitions. [2023-12-16 17:54:03,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-12-16 17:54:03,958 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:54:03,958 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] [2023-12-16 17:54:03,978 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 17:54:04,159 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 17:54:04,159 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:54:04,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:54:04,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1231533070, now seen corresponding path program 1 times [2023-12-16 17:54:04,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:54:04,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [662343206] [2023-12-16 17:54:04,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:54:04,160 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 17:54:04,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:54:04,161 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 17:54:04,189 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 17:54:04,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:54:04,262 INFO L262 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:54:04,264 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:54:04,312 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 17:54:04,313 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:54:04,313 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:54:04,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [662343206] [2023-12-16 17:54:04,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [662343206] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:54:04,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:54:04,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:54:04,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541815324] [2023-12-16 17:54:04,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:54:04,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:54:04,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:54:04,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:54:04,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:54:04,314 INFO L87 Difference]: Start difference. First operand 1890 states and 2561 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:54:04,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:54:04,540 INFO L93 Difference]: Finished difference Result 5595 states and 7596 transitions. [2023-12-16 17:54:04,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:54:04,541 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 141 [2023-12-16 17:54:04,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:54:04,549 INFO L225 Difference]: With dead ends: 5595 [2023-12-16 17:54:04,549 INFO L226 Difference]: Without dead ends: 3722 [2023-12-16 17:54:04,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 139 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 17:54:04,553 INFO L413 NwaCegarLoop]: 458 mSDtfsCounter, 375 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:54:04,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 826 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:54:04,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3722 states. [2023-12-16 17:54:04,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3722 to 3720. [2023-12-16 17:54:04,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3720 states, 3501 states have (on average 1.3578977435018567) internal successors, (4754), 3507 states have internal predecessors, (4754), 120 states have call successors, (120), 97 states have call predecessors, (120), 98 states have return successors, (120), 116 states have call predecessors, (120), 118 states have call successors, (120) [2023-12-16 17:54:04,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3720 states to 3720 states and 4994 transitions. [2023-12-16 17:54:04,715 INFO L78 Accepts]: Start accepts. Automaton has 3720 states and 4994 transitions. Word has length 141 [2023-12-16 17:54:04,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:54:04,715 INFO L495 AbstractCegarLoop]: Abstraction has 3720 states and 4994 transitions. [2023-12-16 17:54:04,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:54:04,716 INFO L276 IsEmpty]: Start isEmpty. Operand 3720 states and 4994 transitions. [2023-12-16 17:54:04,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-12-16 17:54:04,721 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:54:04,721 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:54:04,728 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 17:54:04,926 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 17:54:04,926 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:54:04,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:54:04,927 INFO L85 PathProgramCache]: Analyzing trace with hash -145095183, now seen corresponding path program 1 times [2023-12-16 17:54:04,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:54:04,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1338304372] [2023-12-16 17:54:04,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:54:04,928 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 17:54:04,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:54:04,929 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 17:54:04,930 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 17:54:05,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:54:05,081 INFO L262 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:54:05,085 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:54:05,111 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-12-16 17:54:05,112 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:54:05,112 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:54:05,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1338304372] [2023-12-16 17:54:05,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1338304372] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:54:05,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:54:05,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:54:05,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469557237] [2023-12-16 17:54:05,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:54:05,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:54:05,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:54:05,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:54:05,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:54:05,114 INFO L87 Difference]: Start difference. First operand 3720 states and 4994 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:54:05,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:54:05,331 INFO L93 Difference]: Finished difference Result 8703 states and 11791 transitions. [2023-12-16 17:54:05,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:54:05,332 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 227 [2023-12-16 17:54:05,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:54:05,368 INFO L225 Difference]: With dead ends: 8703 [2023-12-16 17:54:05,368 INFO L226 Difference]: Without dead ends: 5000 [2023-12-16 17:54:05,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 224 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 17:54:05,374 INFO L413 NwaCegarLoop]: 406 mSDtfsCounter, 92 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 1213 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:54:05,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 1213 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:54:05,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5000 states. [2023-12-16 17:54:05,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5000 to 3760. [2023-12-16 17:54:05,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3760 states, 3541 states have (on average 1.3482067212651794) internal successors, (4774), 3547 states have internal predecessors, (4774), 120 states have call successors, (120), 97 states have call predecessors, (120), 98 states have return successors, (120), 116 states have call predecessors, (120), 118 states have call successors, (120) [2023-12-16 17:54:05,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3760 states to 3760 states and 5014 transitions. [2023-12-16 17:54:05,520 INFO L78 Accepts]: Start accepts. Automaton has 3760 states and 5014 transitions. Word has length 227 [2023-12-16 17:54:05,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:54:05,520 INFO L495 AbstractCegarLoop]: Abstraction has 3760 states and 5014 transitions. [2023-12-16 17:54:05,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:54:05,520 INFO L276 IsEmpty]: Start isEmpty. Operand 3760 states and 5014 transitions. [2023-12-16 17:54:05,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-12-16 17:54:05,523 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:54:05,523 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:54:05,538 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-16 17:54:05,728 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 17:54:05,728 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:54:05,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:54:05,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1652100657, now seen corresponding path program 1 times [2023-12-16 17:54:05,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:54:05,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1714508713] [2023-12-16 17:54:05,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:54:05,729 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 17:54:05,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:54:05,730 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 17:54:05,757 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 17:54:05,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:54:05,861 INFO L262 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:54:05,864 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:54:05,877 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-12-16 17:54:05,877 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:54:05,877 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:54:05,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1714508713] [2023-12-16 17:54:05,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1714508713] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:54:05,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:54:05,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:54:05,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992573081] [2023-12-16 17:54:05,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:54:05,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:54:05,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:54:05,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:54:05,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:54:05,879 INFO L87 Difference]: Start difference. First operand 3760 states and 5014 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:54:06,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:54:06,097 INFO L93 Difference]: Finished difference Result 7735 states and 10402 transitions. [2023-12-16 17:54:06,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:54:06,098 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 227 [2023-12-16 17:54:06,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:54:06,116 INFO L225 Difference]: With dead ends: 7735 [2023-12-16 17:54:06,116 INFO L226 Difference]: Without dead ends: 3992 [2023-12-16 17:54:06,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 224 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 17:54:06,124 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 83 mSDsluCounter, 795 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 1199 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:54:06,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 1199 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:54:06,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3992 states. [2023-12-16 17:54:06,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3992 to 3768. [2023-12-16 17:54:06,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3768 states, 3549 states have (on average 1.3372781065088757) internal successors, (4746), 3555 states have internal predecessors, (4746), 120 states have call successors, (120), 97 states have call predecessors, (120), 98 states have return successors, (120), 116 states have call predecessors, (120), 118 states have call successors, (120) [2023-12-16 17:54:06,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3768 states to 3768 states and 4986 transitions. [2023-12-16 17:54:06,325 INFO L78 Accepts]: Start accepts. Automaton has 3768 states and 4986 transitions. Word has length 227 [2023-12-16 17:54:06,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:54:06,325 INFO L495 AbstractCegarLoop]: Abstraction has 3768 states and 4986 transitions. [2023-12-16 17:54:06,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:54:06,325 INFO L276 IsEmpty]: Start isEmpty. Operand 3768 states and 4986 transitions. [2023-12-16 17:54:06,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-12-16 17:54:06,328 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:54:06,328 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:54:06,346 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 17:54:06,534 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 17:54:06,534 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:54:06,534 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:54:06,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1784291855, now seen corresponding path program 1 times [2023-12-16 17:54:06,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:54:06,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [82712188] [2023-12-16 17:54:06,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:54:06,536 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 17:54:06,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:54:06,537 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 17:54:06,565 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 17:54:06,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:54:06,673 INFO L262 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:54:06,676 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:54:06,690 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2023-12-16 17:54:06,690 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:54:06,690 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:54:06,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [82712188] [2023-12-16 17:54:06,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [82712188] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:54:06,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:54:06,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:54:06,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098623380] [2023-12-16 17:54:06,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:54:06,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:54:06,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:54:06,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:54:06,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:54:06,692 INFO L87 Difference]: Start difference. First operand 3768 states and 4986 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:54:06,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:54:06,907 INFO L93 Difference]: Finished difference Result 7727 states and 10314 transitions. [2023-12-16 17:54:06,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:54:06,907 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 227 [2023-12-16 17:54:06,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:54:06,919 INFO L225 Difference]: With dead ends: 7727 [2023-12-16 17:54:06,920 INFO L226 Difference]: Without dead ends: 3976 [2023-12-16 17:54:06,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 224 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 17:54:06,927 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 74 mSDsluCounter, 796 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1200 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:54:06,931 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 1200 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:54:06,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3976 states. [2023-12-16 17:54:07,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3976 to 3776. [2023-12-16 17:54:07,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3776 states, 3557 states have (on average 1.3263986505482148) internal successors, (4718), 3563 states have internal predecessors, (4718), 120 states have call successors, (120), 97 states have call predecessors, (120), 98 states have return successors, (120), 116 states have call predecessors, (120), 118 states have call successors, (120) [2023-12-16 17:54:07,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3776 states to 3776 states and 4958 transitions. [2023-12-16 17:54:07,130 INFO L78 Accepts]: Start accepts. Automaton has 3776 states and 4958 transitions. Word has length 227 [2023-12-16 17:54:07,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:54:07,130 INFO L495 AbstractCegarLoop]: Abstraction has 3776 states and 4958 transitions. [2023-12-16 17:54:07,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:54:07,130 INFO L276 IsEmpty]: Start isEmpty. Operand 3776 states and 4958 transitions. [2023-12-16 17:54:07,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-12-16 17:54:07,132 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:54:07,133 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:54:07,138 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 17:54:07,337 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 17:54:07,338 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:54:07,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:54:07,338 INFO L85 PathProgramCache]: Analyzing trace with hash -903465423, now seen corresponding path program 1 times [2023-12-16 17:54:07,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:54:07,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [431609148] [2023-12-16 17:54:07,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:54:07,339 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 17:54:07,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:54:07,340 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 17:54:07,368 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 17:54:07,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:54:07,472 INFO L262 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:54:07,475 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:54:07,486 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-12-16 17:54:07,486 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:54:07,486 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:54:07,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [431609148] [2023-12-16 17:54:07,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [431609148] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:54:07,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:54:07,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:54:07,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828615944] [2023-12-16 17:54:07,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:54:07,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:54:07,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:54:07,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:54:07,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:54:07,488 INFO L87 Difference]: Start difference. First operand 3776 states and 4958 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:54:07,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:54:07,682 INFO L93 Difference]: Finished difference Result 7719 states and 10226 transitions. [2023-12-16 17:54:07,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:54:07,683 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 227 [2023-12-16 17:54:07,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:54:07,691 INFO L225 Difference]: With dead ends: 7719 [2023-12-16 17:54:07,692 INFO L226 Difference]: Without dead ends: 3960 [2023-12-16 17:54:07,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 224 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 17:54:07,697 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 65 mSDsluCounter, 797 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 1201 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:54:07,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 1201 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:54:07,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3960 states. [2023-12-16 17:54:07,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3960 to 3784. [2023-12-16 17:54:07,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3784 states, 3565 states have (on average 1.3155680224403927) internal successors, (4690), 3571 states have internal predecessors, (4690), 120 states have call successors, (120), 97 states have call predecessors, (120), 98 states have return successors, (120), 116 states have call predecessors, (120), 118 states have call successors, (120) [2023-12-16 17:54:07,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3784 states to 3784 states and 4930 transitions. [2023-12-16 17:54:07,826 INFO L78 Accepts]: Start accepts. Automaton has 3784 states and 4930 transitions. Word has length 227 [2023-12-16 17:54:07,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:54:07,826 INFO L495 AbstractCegarLoop]: Abstraction has 3784 states and 4930 transitions. [2023-12-16 17:54:07,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:54:07,826 INFO L276 IsEmpty]: Start isEmpty. Operand 3784 states and 4930 transitions. [2023-12-16 17:54:07,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-12-16 17:54:07,829 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:54:07,829 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:54:07,847 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 17:54:08,034 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 17:54:08,034 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:54:08,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:54:08,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1872775695, now seen corresponding path program 1 times [2023-12-16 17:54:08,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:54:08,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [266817764] [2023-12-16 17:54:08,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:54:08,035 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 17:54:08,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:54:08,036 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 17:54:08,037 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 17:54:08,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:54:08,183 INFO L262 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:54:08,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:54:08,209 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-12-16 17:54:08,209 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:54:08,209 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:54:08,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [266817764] [2023-12-16 17:54:08,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [266817764] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:54:08,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:54:08,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:54:08,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389781193] [2023-12-16 17:54:08,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:54:08,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:54:08,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:54:08,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:54:08,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:54:08,211 INFO L87 Difference]: Start difference. First operand 3784 states and 4930 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:54:08,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:54:08,400 INFO L93 Difference]: Finished difference Result 7687 states and 10106 transitions. [2023-12-16 17:54:08,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:54:08,400 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 227 [2023-12-16 17:54:08,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:54:08,413 INFO L225 Difference]: With dead ends: 7687 [2023-12-16 17:54:08,414 INFO L226 Difference]: Without dead ends: 3920 [2023-12-16 17:54:08,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 224 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 17:54:08,419 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 47 mSDsluCounter, 799 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 1203 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:54:08,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 1203 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:54:08,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2023-12-16 17:54:08,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3792. [2023-12-16 17:54:08,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3792 states, 3573 states have (on average 1.3047858942065491) internal successors, (4662), 3579 states have internal predecessors, (4662), 120 states have call successors, (120), 97 states have call predecessors, (120), 98 states have return successors, (120), 116 states have call predecessors, (120), 118 states have call successors, (120) [2023-12-16 17:54:08,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3792 states to 3792 states and 4902 transitions. [2023-12-16 17:54:08,586 INFO L78 Accepts]: Start accepts. Automaton has 3792 states and 4902 transitions. Word has length 227 [2023-12-16 17:54:08,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:54:08,586 INFO L495 AbstractCegarLoop]: Abstraction has 3792 states and 4902 transitions. [2023-12-16 17:54:08,586 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, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:54:08,586 INFO L276 IsEmpty]: Start isEmpty. Operand 3792 states and 4902 transitions. [2023-12-16 17:54:08,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-12-16 17:54:08,591 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:54:08,591 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:54:08,607 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 17:54:08,796 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 17:54:08,796 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:54:08,797 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:54:08,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1086449073, now seen corresponding path program 1 times [2023-12-16 17:54:08,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:54:08,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1345178316] [2023-12-16 17:54:08,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:54:08,797 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 17:54:08,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:54:08,799 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 17:54:08,800 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 17:54:08,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:54:08,919 INFO L262 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:54:08,923 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:54:08,947 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-12-16 17:54:08,947 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:54:08,947 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:54:08,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1345178316] [2023-12-16 17:54:08,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1345178316] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:54:08,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:54:08,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:54:08,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141027876] [2023-12-16 17:54:08,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:54:08,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:54:08,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:54:08,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:54:08,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:54:08,949 INFO L87 Difference]: Start difference. First operand 3792 states and 4902 transitions. Second operand has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:54:09,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:54:09,162 INFO L93 Difference]: Finished difference Result 7679 states and 10018 transitions. [2023-12-16 17:54:09,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:54:09,163 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 227 [2023-12-16 17:54:09,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:54:09,170 INFO L225 Difference]: With dead ends: 7679 [2023-12-16 17:54:09,170 INFO L226 Difference]: Without dead ends: 3904 [2023-12-16 17:54:09,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 224 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 17:54:09,175 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 38 mSDsluCounter, 800 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 1204 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:54:09,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 1204 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:54:09,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3904 states. [2023-12-16 17:54:09,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3904 to 3800. [2023-12-16 17:54:09,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3800 states, 3581 states have (on average 1.2940519407986595) internal successors, (4634), 3587 states have internal predecessors, (4634), 120 states have call successors, (120), 97 states have call predecessors, (120), 98 states have return successors, (120), 116 states have call predecessors, (120), 118 states have call successors, (120) [2023-12-16 17:54:09,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3800 states to 3800 states and 4874 transitions. [2023-12-16 17:54:09,345 INFO L78 Accepts]: Start accepts. Automaton has 3800 states and 4874 transitions. Word has length 227 [2023-12-16 17:54:09,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:54:09,345 INFO L495 AbstractCegarLoop]: Abstraction has 3800 states and 4874 transitions. [2023-12-16 17:54:09,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.25) internal successors, (181), 4 states have internal predecessors, (181), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:54:09,345 INFO L276 IsEmpty]: Start isEmpty. Operand 3800 states and 4874 transitions. [2023-12-16 17:54:09,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-12-16 17:54:09,348 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:54:09,348 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:54:09,369 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 17:54:09,553 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 17:54:09,554 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:54:09,554 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:54:09,554 INFO L85 PathProgramCache]: Analyzing trace with hash 607182321, now seen corresponding path program 1 times [2023-12-16 17:54:09,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:54:09,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1756173132] [2023-12-16 17:54:09,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:54:09,555 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 17:54:09,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:54:09,556 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 17:54:09,558 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 17:54:09,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:54:09,686 INFO L262 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:54:09,700 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:54:09,724 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-16 17:54:09,724 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:54:09,724 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:54:09,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1756173132] [2023-12-16 17:54:09,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1756173132] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:54:09,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:54:09,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:54:09,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569965140] [2023-12-16 17:54:09,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:54:09,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:54:09,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:54:09,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:54:09,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:54:09,726 INFO L87 Difference]: Start difference. First operand 3800 states and 4874 transitions. Second operand has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:54:09,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:54:09,911 INFO L93 Difference]: Finished difference Result 7671 states and 9930 transitions. [2023-12-16 17:54:09,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:54:09,912 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 227 [2023-12-16 17:54:09,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:54:09,918 INFO L225 Difference]: With dead ends: 7671 [2023-12-16 17:54:09,918 INFO L226 Difference]: Without dead ends: 3888 [2023-12-16 17:54:09,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 224 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 17:54:09,923 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 29 mSDsluCounter, 801 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 1205 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:54:09,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 1205 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:54:09,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3888 states. [2023-12-16 17:54:10,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3888 to 3808. [2023-12-16 17:54:10,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3808 states, 3589 states have (on average 1.283365840066871) internal successors, (4606), 3595 states have internal predecessors, (4606), 120 states have call successors, (120), 97 states have call predecessors, (120), 98 states have return successors, (120), 116 states have call predecessors, (120), 118 states have call successors, (120) [2023-12-16 17:54:10,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3808 states to 3808 states and 4846 transitions. [2023-12-16 17:54:10,088 INFO L78 Accepts]: Start accepts. Automaton has 3808 states and 4846 transitions. Word has length 227 [2023-12-16 17:54:10,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:54:10,088 INFO L495 AbstractCegarLoop]: Abstraction has 3808 states and 4846 transitions. [2023-12-16 17:54:10,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:54:10,088 INFO L276 IsEmpty]: Start isEmpty. Operand 3808 states and 4846 transitions. [2023-12-16 17:54:10,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-12-16 17:54:10,090 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:54:10,091 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:54:10,110 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 17:54:10,295 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 17:54:10,296 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:54:10,296 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:54:10,296 INFO L85 PathProgramCache]: Analyzing trace with hash 148356529, now seen corresponding path program 1 times [2023-12-16 17:54:10,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:54:10,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1087516319] [2023-12-16 17:54:10,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:54:10,297 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 17:54:10,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:54:10,298 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 17:54:10,324 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 17:54:10,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:54:10,424 INFO L262 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:54:10,427 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:54:10,440 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-12-16 17:54:10,440 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:54:10,440 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:54:10,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1087516319] [2023-12-16 17:54:10,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1087516319] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:54:10,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:54:10,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:54:10,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473533809] [2023-12-16 17:54:10,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:54:10,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:54:10,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:54:10,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:54:10,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:54:10,441 INFO L87 Difference]: Start difference. First operand 3808 states and 4846 transitions. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 4 states have internal predecessors, (191), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:54:10,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:54:10,631 INFO L93 Difference]: Finished difference Result 8239 states and 10609 transitions. [2023-12-16 17:54:10,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:54:10,632 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 4 states have internal predecessors, (191), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 227 [2023-12-16 17:54:10,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:54:10,641 INFO L225 Difference]: With dead ends: 8239 [2023-12-16 17:54:10,641 INFO L226 Difference]: Without dead ends: 4448 [2023-12-16 17:54:10,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 224 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 17:54:10,647 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 20 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 1207 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:54:10,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 1207 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:54:10,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4448 states. [2023-12-16 17:54:10,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4448 to 3888. [2023-12-16 17:54:10,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3888 states, 3669 states have (on average 1.277187244480785) internal successors, (4686), 3675 states have internal predecessors, (4686), 120 states have call successors, (120), 97 states have call predecessors, (120), 98 states have return successors, (120), 116 states have call predecessors, (120), 118 states have call successors, (120) [2023-12-16 17:54:10,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3888 states to 3888 states and 4926 transitions. [2023-12-16 17:54:10,821 INFO L78 Accepts]: Start accepts. Automaton has 3888 states and 4926 transitions. Word has length 227 [2023-12-16 17:54:10,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:54:10,821 INFO L495 AbstractCegarLoop]: Abstraction has 3888 states and 4926 transitions. [2023-12-16 17:54:10,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 4 states have internal predecessors, (191), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:54:10,821 INFO L276 IsEmpty]: Start isEmpty. Operand 3888 states and 4926 transitions. [2023-12-16 17:54:10,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-12-16 17:54:10,824 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:54:10,824 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:54:10,838 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 17:54:11,028 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 17:54:11,029 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:54:11,029 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:54:11,030 INFO L85 PathProgramCache]: Analyzing trace with hash -338426383, now seen corresponding path program 1 times [2023-12-16 17:54:11,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:54:11,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [519260276] [2023-12-16 17:54:11,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:54:11,030 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 17:54:11,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:54:11,031 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 17:54:11,063 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 17:54:11,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:54:11,174 INFO L262 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:54:11,177 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:54:11,193 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-12-16 17:54:11,193 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:54:11,193 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:54:11,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [519260276] [2023-12-16 17:54:11,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [519260276] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:54:11,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:54:11,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:54:11,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478272828] [2023-12-16 17:54:11,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:54:11,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:54:11,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:54:11,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:54:11,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:54:11,195 INFO L87 Difference]: Start difference. First operand 3888 states and 4926 transitions. Second operand has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:54:11,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:54:11,458 INFO L93 Difference]: Finished difference Result 7799 states and 9966 transitions. [2023-12-16 17:54:11,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:54:11,459 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 227 [2023-12-16 17:54:11,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:54:11,466 INFO L225 Difference]: With dead ends: 7799 [2023-12-16 17:54:11,467 INFO L226 Difference]: Without dead ends: 3928 [2023-12-16 17:54:11,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 224 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 17:54:11,472 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 11 mSDsluCounter, 802 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1206 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:54:11,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1206 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:54:11,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3928 states. [2023-12-16 17:54:11,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3928 to 3896. [2023-12-16 17:54:11,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3896 states, 3677 states have (on average 1.2667935817242317) internal successors, (4658), 3683 states have internal predecessors, (4658), 120 states have call successors, (120), 97 states have call predecessors, (120), 98 states have return successors, (120), 116 states have call predecessors, (120), 118 states have call successors, (120) [2023-12-16 17:54:11,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3896 states to 3896 states and 4898 transitions. [2023-12-16 17:54:11,665 INFO L78 Accepts]: Start accepts. Automaton has 3896 states and 4898 transitions. Word has length 227 [2023-12-16 17:54:11,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:54:11,665 INFO L495 AbstractCegarLoop]: Abstraction has 3896 states and 4898 transitions. [2023-12-16 17:54:11,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.0) internal successors, (196), 4 states have internal predecessors, (196), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:54:11,666 INFO L276 IsEmpty]: Start isEmpty. Operand 3896 states and 4898 transitions. [2023-12-16 17:54:11,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-12-16 17:54:11,668 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:54:11,668 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:54:11,686 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 17:54:11,873 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 17:54:11,874 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:54:11,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:54:11,874 INFO L85 PathProgramCache]: Analyzing trace with hash 31167921, now seen corresponding path program 1 times [2023-12-16 17:54:11,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:54:11,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1786971886] [2023-12-16 17:54:11,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:54:11,875 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 17:54:11,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:54:11,876 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 17:54:11,905 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 17:54:12,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:54:12,013 INFO L262 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:54:12,017 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:54:12,033 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-16 17:54:12,033 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:54:12,033 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:54:12,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1786971886] [2023-12-16 17:54:12,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1786971886] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:54:12,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:54:12,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:54:12,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1854250847] [2023-12-16 17:54:12,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:54:12,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:54:12,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:54:12,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:54:12,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:54:12,036 INFO L87 Difference]: Start difference. First operand 3896 states and 4898 transitions. Second operand has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:54:12,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:54:12,271 INFO L93 Difference]: Finished difference Result 7791 states and 9878 transitions. [2023-12-16 17:54:12,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:54:12,271 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 227 [2023-12-16 17:54:12,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:54:12,279 INFO L225 Difference]: With dead ends: 7791 [2023-12-16 17:54:12,279 INFO L226 Difference]: Without dead ends: 3912 [2023-12-16 17:54:12,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 224 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 17:54:12,283 INFO L413 NwaCegarLoop]: 404 mSDtfsCounter, 2 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1207 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:54:12,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1207 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:54:12,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3912 states. [2023-12-16 17:54:12,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3912 to 3904. [2023-12-16 17:54:12,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3904 states, 3685 states have (on average 1.2564450474898237) internal successors, (4630), 3691 states have internal predecessors, (4630), 120 states have call successors, (120), 97 states have call predecessors, (120), 98 states have return successors, (120), 116 states have call predecessors, (120), 118 states have call successors, (120) [2023-12-16 17:54:12,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3904 states to 3904 states and 4870 transitions. [2023-12-16 17:54:12,472 INFO L78 Accepts]: Start accepts. Automaton has 3904 states and 4870 transitions. Word has length 227 [2023-12-16 17:54:12,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:54:12,473 INFO L495 AbstractCegarLoop]: Abstraction has 3904 states and 4870 transitions. [2023-12-16 17:54:12,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.25) internal successors, (201), 4 states have internal predecessors, (201), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:54:12,473 INFO L276 IsEmpty]: Start isEmpty. Operand 3904 states and 4870 transitions. [2023-12-16 17:54:12,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-12-16 17:54:12,479 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:54:12,479 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:54:12,485 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 17:54:12,683 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 17:54:12,683 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:54:12,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:54:12,684 INFO L85 PathProgramCache]: Analyzing trace with hash 633941489, now seen corresponding path program 1 times [2023-12-16 17:54:12,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:54:12,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1070742425] [2023-12-16 17:54:12,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:54:12,685 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 17:54:12,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:54:12,707 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 17:54:12,750 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 17:54:12,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:54:12,871 INFO L262 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:54:12,874 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:54:13,006 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-16 17:54:13,006 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:54:13,006 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:54:13,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1070742425] [2023-12-16 17:54:13,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1070742425] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:54:13,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:54:13,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:54:13,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128775170] [2023-12-16 17:54:13,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:54:13,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:54:13,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:54:13,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:54:13,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:54:13,008 INFO L87 Difference]: Start difference. First operand 3904 states and 4870 transitions. Second operand has 5 states, 5 states have (on average 40.4) internal successors, (202), 4 states have internal predecessors, (202), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:54:13,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:54:13,463 INFO L93 Difference]: Finished difference Result 7792 states and 9725 transitions. [2023-12-16 17:54:13,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:54:13,463 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.4) internal successors, (202), 4 states have internal predecessors, (202), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 227 [2023-12-16 17:54:13,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:54:13,468 INFO L225 Difference]: With dead ends: 7792 [2023-12-16 17:54:13,468 INFO L226 Difference]: Without dead ends: 3904 [2023-12-16 17:54:13,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 223 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 17:54:13,470 INFO L413 NwaCegarLoop]: 259 mSDtfsCounter, 494 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 511 SdHoareTripleChecker+Valid, 677 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:54:13,470 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [511 Valid, 677 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 17:54:13,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3904 states. [2023-12-16 17:54:13,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3904 to 3904. [2023-12-16 17:54:13,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3904 states, 3685 states have (on average 1.2526458616010854) internal successors, (4616), 3691 states have internal predecessors, (4616), 120 states have call successors, (120), 97 states have call predecessors, (120), 98 states have return successors, (120), 116 states have call predecessors, (120), 118 states have call successors, (120) [2023-12-16 17:54:13,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3904 states to 3904 states and 4856 transitions. [2023-12-16 17:54:13,597 INFO L78 Accepts]: Start accepts. Automaton has 3904 states and 4856 transitions. Word has length 227 [2023-12-16 17:54:13,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:54:13,597 INFO L495 AbstractCegarLoop]: Abstraction has 3904 states and 4856 transitions. [2023-12-16 17:54:13,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.4) internal successors, (202), 4 states have internal predecessors, (202), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:54:13,597 INFO L276 IsEmpty]: Start isEmpty. Operand 3904 states and 4856 transitions. [2023-12-16 17:54:13,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-12-16 17:54:13,599 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:54:13,599 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:54:13,606 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 17:54:13,803 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 17:54:13,804 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:54:13,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:54:13,805 INFO L85 PathProgramCache]: Analyzing trace with hash 1495775091, now seen corresponding path program 1 times [2023-12-16 17:54:13,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:54:13,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [739096363] [2023-12-16 17:54:13,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:54:13,805 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 17:54:13,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:54:13,806 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 17:54:13,832 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 17:54:13,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:54:13,944 INFO L262 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:54:13,947 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:54:14,071 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-16 17:54:14,071 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:54:14,071 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:54:14,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [739096363] [2023-12-16 17:54:14,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [739096363] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:54:14,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:54:14,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:54:14,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201983235] [2023-12-16 17:54:14,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:54:14,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:54:14,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:54:14,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:54:14,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:54:14,073 INFO L87 Difference]: Start difference. First operand 3904 states and 4856 transitions. Second operand has 5 states, 5 states have (on average 40.4) internal successors, (202), 4 states have internal predecessors, (202), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:54:14,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:54:14,685 INFO L93 Difference]: Finished difference Result 8178 states and 10186 transitions. [2023-12-16 17:54:14,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:54:14,685 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.4) internal successors, (202), 4 states have internal predecessors, (202), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 227 [2023-12-16 17:54:14,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:54:14,694 INFO L225 Difference]: With dead ends: 8178 [2023-12-16 17:54:14,694 INFO L226 Difference]: Without dead ends: 4290 [2023-12-16 17:54:14,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 223 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 17:54:14,702 INFO L413 NwaCegarLoop]: 258 mSDtfsCounter, 637 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 17:54:14,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [654 Valid, 672 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 17:54:14,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4290 states. [2023-12-16 17:54:14,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4290 to 4158. [2023-12-16 17:54:14,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4158 states, 3927 states have (on average 1.2380952380952381) internal successors, (4862), 3933 states have internal predecessors, (4862), 124 states have call successors, (124), 105 states have call predecessors, (124), 106 states have return successors, (124), 120 states have call predecessors, (124), 122 states have call successors, (124) [2023-12-16 17:54:14,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4158 states to 4158 states and 5110 transitions. [2023-12-16 17:54:14,882 INFO L78 Accepts]: Start accepts. Automaton has 4158 states and 5110 transitions. Word has length 227 [2023-12-16 17:54:14,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:54:14,883 INFO L495 AbstractCegarLoop]: Abstraction has 4158 states and 5110 transitions. [2023-12-16 17:54:14,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.4) internal successors, (202), 4 states have internal predecessors, (202), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:54:14,883 INFO L276 IsEmpty]: Start isEmpty. Operand 4158 states and 5110 transitions. [2023-12-16 17:54:14,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-12-16 17:54:14,886 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:54:14,886 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:54:14,903 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 17:54:15,092 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 17:54:15,092 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:54:15,092 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:54:15,093 INFO L85 PathProgramCache]: Analyzing trace with hash -870259979, now seen corresponding path program 1 times [2023-12-16 17:54:15,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:54:15,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1914812469] [2023-12-16 17:54:15,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:54:15,093 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 17:54:15,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:54:15,107 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 17:54:15,108 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 17:54:15,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:54:15,230 INFO L262 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:54:15,234 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:54:15,365 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-16 17:54:15,365 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:54:15,365 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:54:15,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1914812469] [2023-12-16 17:54:15,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1914812469] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:54:15,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:54:15,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:54:15,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592874449] [2023-12-16 17:54:15,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:54:15,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:54:15,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:54:15,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:54:15,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:54:15,367 INFO L87 Difference]: Start difference. First operand 4158 states and 5110 transitions. Second operand has 5 states, 5 states have (on average 40.4) internal successors, (202), 4 states have internal predecessors, (202), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:54:15,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:54:15,918 INFO L93 Difference]: Finished difference Result 8554 states and 10560 transitions. [2023-12-16 17:54:15,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:54:15,919 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.4) internal successors, (202), 4 states have internal predecessors, (202), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 227 [2023-12-16 17:54:15,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:54:15,928 INFO L225 Difference]: With dead ends: 8554 [2023-12-16 17:54:15,928 INFO L226 Difference]: Without dead ends: 4412 [2023-12-16 17:54:15,934 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 223 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 17:54:15,935 INFO L413 NwaCegarLoop]: 255 mSDtfsCounter, 563 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:54:15,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [580 Valid, 665 Invalid, 596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:54:15,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4412 states. [2023-12-16 17:54:16,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4412 to 4348. [2023-12-16 17:54:16,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4348 states, 4113 states have (on average 1.2156576707999027) internal successors, (5000), 4119 states have internal predecessors, (5000), 124 states have call successors, (124), 109 states have call predecessors, (124), 110 states have return successors, (124), 120 states have call predecessors, (124), 122 states have call successors, (124) [2023-12-16 17:54:16,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4348 states to 4348 states and 5248 transitions. [2023-12-16 17:54:16,092 INFO L78 Accepts]: Start accepts. Automaton has 4348 states and 5248 transitions. Word has length 227 [2023-12-16 17:54:16,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:54:16,093 INFO L495 AbstractCegarLoop]: Abstraction has 4348 states and 5248 transitions. [2023-12-16 17:54:16,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.4) internal successors, (202), 4 states have internal predecessors, (202), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:54:16,093 INFO L276 IsEmpty]: Start isEmpty. Operand 4348 states and 5248 transitions. [2023-12-16 17:54:16,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-12-16 17:54:16,096 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:54:16,096 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:54:16,110 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 17:54:16,301 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 17:54:16,302 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:54:16,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:54:16,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1282846839, now seen corresponding path program 1 times [2023-12-16 17:54:16,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:54:16,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1990853728] [2023-12-16 17:54:16,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:54:16,303 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 17:54:16,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:54:16,304 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 17:54:16,306 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 17:54:16,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:54:16,456 INFO L262 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:54:16,460 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:54:16,667 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-12-16 17:54:16,667 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:54:16,667 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:54:16,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1990853728] [2023-12-16 17:54:16,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1990853728] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:54:16,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:54:16,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:54:16,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256824299] [2023-12-16 17:54:16,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:54:16,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:54:16,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:54:16,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:54:16,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:54:16,669 INFO L87 Difference]: Start difference. First operand 4348 states and 5248 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 17:54:17,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:54:17,308 INFO L93 Difference]: Finished difference Result 12899 states and 15546 transitions. [2023-12-16 17:54:17,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:54:17,309 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 227 [2023-12-16 17:54:17,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:54:17,323 INFO L225 Difference]: With dead ends: 12899 [2023-12-16 17:54:17,324 INFO L226 Difference]: Without dead ends: 8569 [2023-12-16 17:54:17,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 225 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 17:54:17,330 INFO L413 NwaCegarLoop]: 491 mSDtfsCounter, 561 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 1152 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:54:17,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [565 Valid, 1152 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:54:17,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8569 states. [2023-12-16 17:54:17,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8569 to 8565. [2023-12-16 17:54:17,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8565 states, 8107 states have (on average 1.2100653756013322) internal successors, (9810), 8122 states have internal predecessors, (9810), 237 states have call successors, (237), 209 states have call predecessors, (237), 220 states have return successors, (259), 235 states have call predecessors, (259), 235 states have call successors, (259) [2023-12-16 17:54:17,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8565 states to 8565 states and 10306 transitions. [2023-12-16 17:54:17,654 INFO L78 Accepts]: Start accepts. Automaton has 8565 states and 10306 transitions. Word has length 227 [2023-12-16 17:54:17,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:54:17,654 INFO L495 AbstractCegarLoop]: Abstraction has 8565 states and 10306 transitions. [2023-12-16 17:54:17,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 17:54:17,655 INFO L276 IsEmpty]: Start isEmpty. Operand 8565 states and 10306 transitions. [2023-12-16 17:54:17,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2023-12-16 17:54:17,659 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:54:17,659 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:54:17,683 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 17:54:17,864 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 17:54:17,864 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:54:17,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:54:17,864 INFO L85 PathProgramCache]: Analyzing trace with hash 2059094393, now seen corresponding path program 1 times [2023-12-16 17:54:17,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:54:17,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [5224384] [2023-12-16 17:54:17,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:54:17,865 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 17:54:17,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:54:17,866 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 17:54:17,867 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 17:54:18,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:54:18,012 INFO L262 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:54:18,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:54:18,025 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-12-16 17:54:18,025 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:54:18,025 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:54:18,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [5224384] [2023-12-16 17:54:18,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [5224384] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:54:18,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:54:18,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:54:18,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281738409] [2023-12-16 17:54:18,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:54:18,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:54:18,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:54:18,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:54:18,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:54:18,028 INFO L87 Difference]: Start difference. First operand 8565 states and 10306 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 2 states have internal predecessors, (146), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:54:18,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:54:18,366 INFO L93 Difference]: Finished difference Result 17099 states and 20557 transitions. [2023-12-16 17:54:18,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:54:18,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 2 states have internal predecessors, (146), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 227 [2023-12-16 17:54:18,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:54:18,380 INFO L225 Difference]: With dead ends: 17099 [2023-12-16 17:54:18,380 INFO L226 Difference]: Without dead ends: 8552 [2023-12-16 17:54:18,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 225 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 17:54:18,388 INFO L413 NwaCegarLoop]: 394 mSDtfsCounter, 426 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 426 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:54:18,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [426 Valid, 394 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:54:18,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8552 states. [2023-12-16 17:54:18,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8552 to 8552. [2023-12-16 17:54:18,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8552 states, 8097 states have (on average 1.2092132888724219) internal successors, (9791), 8111 states have internal predecessors, (9791), 234 states have call successors, (234), 209 states have call predecessors, (234), 220 states have return successors, (256), 232 states have call predecessors, (256), 232 states have call successors, (256) [2023-12-16 17:54:18,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8552 states to 8552 states and 10281 transitions. [2023-12-16 17:54:18,687 INFO L78 Accepts]: Start accepts. Automaton has 8552 states and 10281 transitions. Word has length 227 [2023-12-16 17:54:18,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:54:18,688 INFO L495 AbstractCegarLoop]: Abstraction has 8552 states and 10281 transitions. [2023-12-16 17:54:18,688 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 2 states have internal predecessors, (146), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:54:18,688 INFO L276 IsEmpty]: Start isEmpty. Operand 8552 states and 10281 transitions. [2023-12-16 17:54:18,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2023-12-16 17:54:18,692 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:54:18,692 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:54:18,699 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 (38)] Forceful destruction successful, exit code 0 [2023-12-16 17:54:18,897 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 17:54:18,898 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:54:18,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:54:18,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1211110322, now seen corresponding path program 1 times [2023-12-16 17:54:18,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:54:18,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [219366228] [2023-12-16 17:54:18,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:54:18,899 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 17:54:18,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:54:18,900 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 17:54:18,901 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 17:54:19,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:54:19,081 INFO L262 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:54:19,084 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:54:19,284 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-12-16 17:54:19,284 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:54:19,284 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:54:19,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [219366228] [2023-12-16 17:54:19,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [219366228] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:54:19,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:54:19,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:54:19,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524160378] [2023-12-16 17:54:19,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:54:19,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:54:19,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:54:19,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:54:19,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:54:19,286 INFO L87 Difference]: Start difference. First operand 8552 states and 10281 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 17:54:20,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:54:20,332 INFO L93 Difference]: Finished difference Result 25172 states and 30241 transitions. [2023-12-16 17:54:20,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:54:20,333 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 229 [2023-12-16 17:54:20,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:54:20,354 INFO L225 Difference]: With dead ends: 25172 [2023-12-16 17:54:20,354 INFO L226 Difference]: Without dead ends: 16638 [2023-12-16 17:54:20,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 227 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 17:54:20,358 INFO L413 NwaCegarLoop]: 474 mSDtfsCounter, 556 mSDsluCounter, 643 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:54:20,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [561 Valid, 1117 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:54:20,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16638 states. [2023-12-16 17:54:20,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16638 to 16634. [2023-12-16 17:54:20,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16634 states, 15752 states have (on average 1.2061325545962418) internal successors, (18999), 15783 states have internal predecessors, (18999), 449 states have call successors, (449), 401 states have call predecessors, (449), 432 states have return successors, (515), 451 states have call predecessors, (515), 447 states have call successors, (515) [2023-12-16 17:54:20,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16634 states to 16634 states and 19963 transitions. [2023-12-16 17:54:20,979 INFO L78 Accepts]: Start accepts. Automaton has 16634 states and 19963 transitions. Word has length 229 [2023-12-16 17:54:20,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:54:20,979 INFO L495 AbstractCegarLoop]: Abstraction has 16634 states and 19963 transitions. [2023-12-16 17:54:20,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 17:54:20,979 INFO L276 IsEmpty]: Start isEmpty. Operand 16634 states and 19963 transitions. [2023-12-16 17:54:20,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2023-12-16 17:54:20,986 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:54:20,987 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:54:20,991 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 17:54:21,191 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 17:54:21,191 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:54:21,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:54:21,192 INFO L85 PathProgramCache]: Analyzing trace with hash -495019280, now seen corresponding path program 1 times [2023-12-16 17:54:21,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:54:21,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [306875794] [2023-12-16 17:54:21,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:54:21,192 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 17:54:21,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:54:21,194 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 17:54:21,196 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 17:54:21,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:54:21,317 INFO L262 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:54:21,320 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:54:21,330 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-12-16 17:54:21,330 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:54:21,330 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:54:21,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [306875794] [2023-12-16 17:54:21,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [306875794] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:54:21,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:54:21,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:54:21,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333404760] [2023-12-16 17:54:21,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:54:21,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:54:21,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:54:21,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:54:21,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:54:21,332 INFO L87 Difference]: Start difference. First operand 16634 states and 19963 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 2 states have internal predecessors, (148), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:54:21,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:54:21,944 INFO L93 Difference]: Finished difference Result 33238 states and 39874 transitions. [2023-12-16 17:54:21,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:54:21,944 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 2 states have internal predecessors, (148), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 229 [2023-12-16 17:54:21,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:54:21,969 INFO L225 Difference]: With dead ends: 33238 [2023-12-16 17:54:21,969 INFO L226 Difference]: Without dead ends: 16622 [2023-12-16 17:54:21,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 227 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 17:54:21,981 INFO L413 NwaCegarLoop]: 393 mSDtfsCounter, 424 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:54:21,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 393 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:54:21,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16622 states. [2023-12-16 17:54:22,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16622 to 16622. [2023-12-16 17:54:22,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16622 states, 15743 states have (on average 1.2057422346439688) internal successors, (18982), 15773 states have internal predecessors, (18982), 446 states have call successors, (446), 401 states have call predecessors, (446), 432 states have return successors, (512), 448 states have call predecessors, (512), 444 states have call successors, (512) [2023-12-16 17:54:22,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16622 states to 16622 states and 19940 transitions. [2023-12-16 17:54:22,720 INFO L78 Accepts]: Start accepts. Automaton has 16622 states and 19940 transitions. Word has length 229 [2023-12-16 17:54:22,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:54:22,720 INFO L495 AbstractCegarLoop]: Abstraction has 16622 states and 19940 transitions. [2023-12-16 17:54:22,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 2 states have internal predecessors, (148), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:54:22,720 INFO L276 IsEmpty]: Start isEmpty. Operand 16622 states and 19940 transitions. [2023-12-16 17:54:22,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2023-12-16 17:54:22,727 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:54:22,727 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:54:22,732 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 17:54:22,931 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 17:54:22,932 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:54:22,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:54:22,932 INFO L85 PathProgramCache]: Analyzing trace with hash 955970039, now seen corresponding path program 1 times [2023-12-16 17:54:22,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:54:22,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [869780367] [2023-12-16 17:54:22,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:54:22,933 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 17:54:22,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:54:22,934 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 17:54:22,936 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 17:54:23,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:54:23,086 INFO L262 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:54:23,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:54:23,291 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-12-16 17:54:23,292 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:54:23,292 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:54:23,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [869780367] [2023-12-16 17:54:23,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [869780367] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:54:23,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:54:23,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:54:23,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410938476] [2023-12-16 17:54:23,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:54:23,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:54:23,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:54:23,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:54:23,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:54:23,293 INFO L87 Difference]: Start difference. First operand 16622 states and 19940 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 17:54:24,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:54:24,697 INFO L93 Difference]: Finished difference Result 48941 states and 58694 transitions. [2023-12-16 17:54:24,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:54:24,698 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 231 [2023-12-16 17:54:24,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:54:24,780 INFO L225 Difference]: With dead ends: 48941 [2023-12-16 17:54:24,780 INFO L226 Difference]: Without dead ends: 32337 [2023-12-16 17:54:24,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 229 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 17:54:24,798 INFO L413 NwaCegarLoop]: 460 mSDtfsCounter, 549 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 1085 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:54:24,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 1085 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 17:54:24,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32337 states. [2023-12-16 17:54:26,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32337 to 32333. [2023-12-16 17:54:26,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32333 states, 30627 states have (on average 1.2039050510987037) internal successors, (36872), 30694 states have internal predecessors, (36872), 857 states have call successors, (857), 769 states have call predecessors, (857), 848 states have return successors, (1019), 871 states have call predecessors, (1019), 855 states have call successors, (1019) [2023-12-16 17:54:26,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32333 states to 32333 states and 38748 transitions. [2023-12-16 17:54:26,138 INFO L78 Accepts]: Start accepts. Automaton has 32333 states and 38748 transitions. Word has length 231 [2023-12-16 17:54:26,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:54:26,139 INFO L495 AbstractCegarLoop]: Abstraction has 32333 states and 38748 transitions. [2023-12-16 17:54:26,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 17:54:26,139 INFO L276 IsEmpty]: Start isEmpty. Operand 32333 states and 38748 transitions. [2023-12-16 17:54:26,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2023-12-16 17:54:26,152 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:54:26,152 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:54:26,156 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 (41)] Ended with exit code 0 [2023-12-16 17:54:26,356 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 17:54:26,357 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:54:26,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:54:26,357 INFO L85 PathProgramCache]: Analyzing trace with hash -394440071, now seen corresponding path program 1 times [2023-12-16 17:54:26,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:54:26,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [103506338] [2023-12-16 17:54:26,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:54:26,358 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 17:54:26,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:54:26,359 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 17:54:26,386 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 17:54:26,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:54:26,489 INFO L262 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:54:26,492 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:54:26,504 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-12-16 17:54:26,504 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:54:26,505 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:54:26,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [103506338] [2023-12-16 17:54:26,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [103506338] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:54:26,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:54:26,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:54:26,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392231782] [2023-12-16 17:54:26,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:54:26,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:54:26,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:54:26,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:54:26,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:54:26,506 INFO L87 Difference]: Start difference. First operand 32333 states and 38748 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 2 states have internal predecessors, (150), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:54:28,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:54:28,119 INFO L93 Difference]: Finished difference Result 64637 states and 77447 transitions. [2023-12-16 17:54:28,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:54:28,119 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 2 states have internal predecessors, (150), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 231 [2023-12-16 17:54:28,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:54:28,178 INFO L225 Difference]: With dead ends: 64637 [2023-12-16 17:54:28,185 INFO L226 Difference]: Without dead ends: 32322 [2023-12-16 17:54:28,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 229 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 17:54:28,209 INFO L413 NwaCegarLoop]: 392 mSDtfsCounter, 422 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:54:28,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 392 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:54:28,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32322 states. [2023-12-16 17:54:29,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32322 to 32322. [2023-12-16 17:54:29,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32322 states, 30619 states have (on average 1.2037297103105915) internal successors, (36857), 30685 states have internal predecessors, (36857), 854 states have call successors, (854), 769 states have call predecessors, (854), 848 states have return successors, (1016), 868 states have call predecessors, (1016), 852 states have call successors, (1016) [2023-12-16 17:54:29,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32322 states to 32322 states and 38727 transitions. [2023-12-16 17:54:29,594 INFO L78 Accepts]: Start accepts. Automaton has 32322 states and 38727 transitions. Word has length 231 [2023-12-16 17:54:29,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:54:29,594 INFO L495 AbstractCegarLoop]: Abstraction has 32322 states and 38727 transitions. [2023-12-16 17:54:29,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 2 states have internal predecessors, (150), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:54:29,594 INFO L276 IsEmpty]: Start isEmpty. Operand 32322 states and 38727 transitions. [2023-12-16 17:54:29,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2023-12-16 17:54:29,608 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:54:29,614 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:54:29,619 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 17:54:29,819 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 17:54:29,819 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:54:29,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:54:29,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1409422322, now seen corresponding path program 1 times [2023-12-16 17:54:29,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:54:29,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [514021165] [2023-12-16 17:54:29,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:54:29,821 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 17:54:29,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:54:29,822 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 17:54:29,823 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 17:54:29,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:54:29,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:54:29,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:54:30,157 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-12-16 17:54:30,158 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:54:30,158 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:54:30,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [514021165] [2023-12-16 17:54:30,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [514021165] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:54:30,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:54:30,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:54:30,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93742661] [2023-12-16 17:54:30,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:54:30,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:54:30,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:54:30,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:54:30,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:54:30,159 INFO L87 Difference]: Start difference. First operand 32322 states and 38727 transitions. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 17:54:33,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:54:33,267 INFO L93 Difference]: Finished difference Result 109476 states and 130760 transitions. [2023-12-16 17:54:33,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:54:33,267 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 233 [2023-12-16 17:54:33,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:54:33,391 INFO L225 Difference]: With dead ends: 109476 [2023-12-16 17:54:33,392 INFO L226 Difference]: Without dead ends: 77172 [2023-12-16 17:54:33,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 231 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 17:54:33,415 INFO L413 NwaCegarLoop]: 468 mSDtfsCounter, 556 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 1087 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:54:33,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 1087 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:54:33,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77172 states. [2023-12-16 17:54:36,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77172 to 75760. [2023-12-16 17:54:36,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75760 states, 71846 states have (on average 1.1979650920023384) internal successors, (86069), 72313 states have internal predecessors, (86069), 1641 states have call successors, (1641), 1473 states have call predecessors, (1641), 2272 states have return successors, (2636), 1975 states have call predecessors, (2636), 1639 states have call successors, (2636) [2023-12-16 17:54:36,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75760 states to 75760 states and 90346 transitions. [2023-12-16 17:54:36,632 INFO L78 Accepts]: Start accepts. Automaton has 75760 states and 90346 transitions. Word has length 233 [2023-12-16 17:54:36,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:54:36,633 INFO L495 AbstractCegarLoop]: Abstraction has 75760 states and 90346 transitions. [2023-12-16 17:54:36,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 17:54:36,633 INFO L276 IsEmpty]: Start isEmpty. Operand 75760 states and 90346 transitions. [2023-12-16 17:54:36,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2023-12-16 17:54:36,662 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:54:36,662 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:54:36,667 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 17:54:36,866 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 17:54:36,867 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:54:36,867 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:54:36,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1798585424, now seen corresponding path program 1 times [2023-12-16 17:54:36,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:54:36,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1566054695] [2023-12-16 17:54:36,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:54:36,868 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 17:54:36,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:54:36,869 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 17:54:36,871 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 17:54:36,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:54:36,991 INFO L262 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:54:36,993 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:54:37,006 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2023-12-16 17:54:37,006 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:54:37,006 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:54:37,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1566054695] [2023-12-16 17:54:37,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1566054695] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:54:37,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:54:37,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:54:37,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988345006] [2023-12-16 17:54:37,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:54:37,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:54:37,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:54:37,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:54:37,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:54:37,010 INFO L87 Difference]: Start difference. First operand 75760 states and 90346 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 2 states have internal predecessors, (152), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:54:39,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:54:39,890 INFO L93 Difference]: Finished difference Result 151493 states and 180647 transitions. [2023-12-16 17:54:39,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:54:39,891 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 2 states have internal predecessors, (152), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 233 [2023-12-16 17:54:39,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:54:40,034 INFO L225 Difference]: With dead ends: 151493 [2023-12-16 17:54:40,034 INFO L226 Difference]: Without dead ends: 75750 [2023-12-16 17:54:40,184 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 231 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 17:54:40,189 INFO L413 NwaCegarLoop]: 391 mSDtfsCounter, 420 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:54:40,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [420 Valid, 391 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:54:40,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75750 states. [2023-12-16 17:54:43,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75750 to 75750. [2023-12-16 17:54:43,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75750 states, 71839 states have (on average 1.197900861648965) internal successors, (86056), 72305 states have internal predecessors, (86056), 1638 states have call successors, (1638), 1473 states have call predecessors, (1638), 2272 states have return successors, (2632), 1972 states have call predecessors, (2632), 1636 states have call successors, (2632) [2023-12-16 17:54:43,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75750 states to 75750 states and 90326 transitions. [2023-12-16 17:54:43,324 INFO L78 Accepts]: Start accepts. Automaton has 75750 states and 90326 transitions. Word has length 233 [2023-12-16 17:54:43,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:54:43,326 INFO L495 AbstractCegarLoop]: Abstraction has 75750 states and 90326 transitions. [2023-12-16 17:54:43,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 2 states have internal predecessors, (152), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:54:43,326 INFO L276 IsEmpty]: Start isEmpty. Operand 75750 states and 90326 transitions. [2023-12-16 17:54:43,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2023-12-16 17:54:43,353 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:54:43,353 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:54:43,359 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 17:54:43,557 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 17:54:43,557 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:54:43,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:54:43,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1575556233, now seen corresponding path program 1 times [2023-12-16 17:54:43,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:54:43,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1181226281] [2023-12-16 17:54:43,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:54:43,559 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 17:54:43,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:54:43,560 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 17:54:43,560 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 17:54:43,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:54:43,689 INFO L262 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:54:43,692 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:54:43,898 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-12-16 17:54:43,898 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:54:43,898 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:54:43,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1181226281] [2023-12-16 17:54:43,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1181226281] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:54:43,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:54:43,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:54:43,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966317387] [2023-12-16 17:54:43,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:54:43,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:54:43,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:54:43,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:54:43,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:54:43,899 INFO L87 Difference]: Start difference. First operand 75750 states and 90326 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 17:54:48,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:54:48,937 INFO L93 Difference]: Finished difference Result 221859 states and 264428 transitions. [2023-12-16 17:54:48,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:54:48,937 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 235 [2023-12-16 17:54:48,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:54:49,245 INFO L225 Difference]: With dead ends: 221859 [2023-12-16 17:54:49,246 INFO L226 Difference]: Without dead ends: 146127 [2023-12-16 17:54:49,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 233 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 17:54:49,315 INFO L413 NwaCegarLoop]: 432 mSDtfsCounter, 534 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 376 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 540 SdHoareTripleChecker+Valid, 1020 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 376 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 17:54:49,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [540 Valid, 1020 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 376 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 17:54:49,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146127 states. Received shutdown request... [2023-12-16 17:54:52,608 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 (45)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:54:52,608 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 17:54:53,624 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 17:54:53,625 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 [2023-12-16 17:54:54,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146127 to 146123. [2023-12-16 17:54:55,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146123 states, 138561 states have (on average 1.1962529138790858) internal successors, (165754), 139492 states have internal predecessors, (165754), 3145 states have call successors, (3145), 2817 states have call predecessors, (3145), 4416 states have return successors, (5147), 3815 states have call predecessors, (5147), 3143 states have call successors, (5147) [2023-12-16 17:54:55,048 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 17:54:55,049 WARN L619 AbstractCegarLoop]: Verification canceled: while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). [2023-12-16 17:54:55,054 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] [2023-12-16 17:54:55,056 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 17:54:55,060 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:54:55 BoogieIcfgContainer [2023-12-16 17:54:55,061 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 17:54:55,061 INFO L158 Benchmark]: Toolchain (without parser) took 70441.13ms. Allocated memory was 185.6MB in the beginning and 7.3GB in the end (delta: 7.1GB). Free memory was 125.9MB in the beginning and 6.2GB in the end (delta: -6.1GB). Peak memory consumption was 2.5GB. Max. memory is 8.0GB. [2023-12-16 17:54:55,061 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 185.6MB. Free memory is still 137.1MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 17:54:55,061 INFO L158 Benchmark]: CACSL2BoogieTranslator took 441.24ms. Allocated memory is still 185.6MB. Free memory was 125.6MB in the beginning and 149.0MB in the end (delta: -23.4MB). Peak memory consumption was 24.6MB. Max. memory is 8.0GB. [2023-12-16 17:54:55,061 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.94ms. Allocated memory is still 185.6MB. Free memory was 149.0MB in the beginning and 145.3MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 17:54:55,061 INFO L158 Benchmark]: Boogie Preprocessor took 93.71ms. Allocated memory is still 185.6MB. Free memory was 145.3MB in the beginning and 140.6MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 17:54:55,061 INFO L158 Benchmark]: RCFGBuilder took 812.51ms. Allocated memory is still 185.6MB. Free memory was 140.6MB in the beginning and 77.1MB in the end (delta: 63.4MB). Peak memory consumption was 62.9MB. Max. memory is 8.0GB. [2023-12-16 17:54:55,065 INFO L158 Benchmark]: TraceAbstraction took 69044.21ms. Allocated memory was 185.6MB in the beginning and 7.3GB in the end (delta: 7.1GB). Free memory was 76.6MB in the beginning and 6.2GB in the end (delta: -6.1GB). Peak memory consumption was 2.4GB. Max. memory is 8.0GB. [2023-12-16 17:54:55,066 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 185.6MB. Free memory is still 137.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 441.24ms. Allocated memory is still 185.6MB. Free memory was 125.6MB in the beginning and 149.0MB in the end (delta: -23.4MB). Peak memory consumption was 24.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.94ms. Allocated memory is still 185.6MB. Free memory was 149.0MB in the beginning and 145.3MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 93.71ms. Allocated memory is still 185.6MB. Free memory was 145.3MB in the beginning and 140.6MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 812.51ms. Allocated memory is still 185.6MB. Free memory was 140.6MB in the beginning and 77.1MB in the end (delta: 63.4MB). Peak memory consumption was 62.9MB. Max. memory is 8.0GB. * TraceAbstraction took 69044.21ms. Allocated memory was 185.6MB in the beginning and 7.3GB in the end (delta: 7.1GB). Free memory was 76.6MB in the beginning and 6.2GB in the end (delta: -6.1GB). Peak memory consumption was 2.4GB. 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: 20]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 20). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructed, input type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 310 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 69.0s, OverallIterations: 44, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 30.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21198 SdHoareTripleChecker+Valid, 11.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20778 mSDsluCounter, 37510 SdHoareTripleChecker+Invalid, 8.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21876 mSDsCounter, 1083 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14430 IncrementalHoareTripleChecker+Invalid, 15513 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1083 mSolverCounterUnsat, 15634 mSDtfsCounter, 14430 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8118 GetRequests, 7986 SyntacticMatches, 0 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75760occurred in iteration=42, InterpolantAutomatonStates: 189, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 20.0s AutomataMinimizationTime, 44 MinimizatonAttempts, 4401 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.2s SsaConstructionTime, 2.9s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 8128 NumberOfCodeBlocks, 8128 NumberOfCodeBlocksAsserted, 44 NumberOfCheckSat, 8084 ConstructedInterpolants, 0 QuantifiedInterpolants, 12610 SizeOfPredicates, 10 NumberOfNonLiveVariables, 19647 ConjunctsInSsa, 188 ConjunctsInUnsatCore, 44 InterpolantComputations, 44 PerfectInterpolantSequences, 1496/1496 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