/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.07.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-25 07:17:39,430 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-25 07:17:39,494 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-25 07:17:39,500 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-25 07:17:39,500 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-25 07:17:39,525 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-25 07:17:39,526 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-25 07:17:39,526 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-25 07:17:39,526 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-25 07:17:39,527 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-25 07:17:39,527 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-25 07:17:39,527 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-25 07:17:39,527 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-25 07:17:39,528 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-25 07:17:39,531 INFO L153 SettingsManager]: * Use SBE=true [2023-12-25 07:17:39,531 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-25 07:17:39,532 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-25 07:17:39,535 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-25 07:17:39,535 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-25 07:17:39,536 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-25 07:17:39,537 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-25 07:17:39,537 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-25 07:17:39,537 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-25 07:17:39,537 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-25 07:17:39,537 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-25 07:17:39,538 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-25 07:17:39,538 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-25 07:17:39,538 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-25 07:17:39,538 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-25 07:17:39,538 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-25 07:17:39,539 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-25 07:17:39,539 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-25 07:17:39,539 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-25 07:17:39,539 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-25 07:17:39,539 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 07:17:39,540 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-25 07:17:39,540 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-25 07:17:39,540 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-25 07:17:39,540 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-25 07:17:39,540 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-25 07:17:39,540 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-25 07:17:39,541 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-25 07:17:39,541 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-25 07:17:39,541 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-25 07:17:39,541 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-25 07:17:39,541 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-25 07:17:39,541 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-25 07:17:39,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-25 07:17:39,764 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-25 07:17:39,765 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-25 07:17:39,766 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-25 07:17:39,766 INFO L274 PluginConnector]: CDTParser initialized [2023-12-25 07:17:39,767 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/token_ring.07.cil-2.c [2023-12-25 07:17:40,873 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-25 07:17:41,048 INFO L384 CDTParser]: Found 1 translation units. [2023-12-25 07:17:41,054 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/token_ring.07.cil-2.c [2023-12-25 07:17:41,070 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/384d71cb4/8abd529ef22243bbb3197935309e3f00/FLAG8563486cb [2023-12-25 07:17:41,083 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/384d71cb4/8abd529ef22243bbb3197935309e3f00 [2023-12-25 07:17:41,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-25 07:17:41,086 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-25 07:17:41,089 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-25 07:17:41,089 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-25 07:17:41,092 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-25 07:17:41,093 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 07:17:41" (1/1) ... [2023-12-25 07:17:41,093 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bbfc64e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:17:41, skipping insertion in model container [2023-12-25 07:17:41,094 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.12 07:17:41" (1/1) ... [2023-12-25 07:17:41,129 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-25 07:17:41,251 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.07.cil-2.c[671,684] [2023-12-25 07:17:41,311 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 07:17:41,324 INFO L202 MainTranslator]: Completed pre-run [2023-12-25 07:17:41,332 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.07.cil-2.c[671,684] [2023-12-25 07:17:41,373 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-25 07:17:41,389 INFO L206 MainTranslator]: Completed translation [2023-12-25 07:17:41,390 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:17:41 WrapperNode [2023-12-25 07:17:41,390 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-25 07:17:41,391 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-25 07:17:41,391 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-25 07:17:41,391 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-25 07:17:41,396 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:17:41" (1/1) ... [2023-12-25 07:17:41,415 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:17:41" (1/1) ... [2023-12-25 07:17:41,465 INFO L138 Inliner]: procedures = 42, calls = 53, calls flagged for inlining = 25, calls inlined = 25, statements flattened = 563 [2023-12-25 07:17:41,466 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-25 07:17:41,466 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-25 07:17:41,467 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-25 07:17:41,467 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-25 07:17:41,482 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:17:41" (1/1) ... [2023-12-25 07:17:41,482 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:17:41" (1/1) ... [2023-12-25 07:17:41,485 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:17:41" (1/1) ... [2023-12-25 07:17:41,497 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]. [2023-12-25 07:17:41,497 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:17:41" (1/1) ... [2023-12-25 07:17:41,497 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:17:41" (1/1) ... [2023-12-25 07:17:41,520 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:17:41" (1/1) ... [2023-12-25 07:17:41,533 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:17:41" (1/1) ... [2023-12-25 07:17:41,535 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:17:41" (1/1) ... [2023-12-25 07:17:41,537 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:17:41" (1/1) ... [2023-12-25 07:17:41,565 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-25 07:17:41,566 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-25 07:17:41,566 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-25 07:17:41,566 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-25 07:17:41,567 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:17:41" (1/1) ... [2023-12-25 07:17:41,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-25 07:17:41,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-25 07:17:41,592 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) [2023-12-25 07:17:41,626 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 [2023-12-25 07:17:41,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-25 07:17:41,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-25 07:17:41,633 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-12-25 07:17:41,635 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-12-25 07:17:41,635 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-25 07:17:41,635 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-25 07:17:41,635 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-25 07:17:41,635 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-25 07:17:41,635 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-25 07:17:41,635 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-25 07:17:41,636 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-25 07:17:41,636 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-25 07:17:41,636 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-25 07:17:41,636 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-25 07:17:41,636 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-25 07:17:41,636 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-25 07:17:41,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-25 07:17:41,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-25 07:17:41,738 INFO L241 CfgBuilder]: Building ICFG [2023-12-25 07:17:41,739 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-25 07:17:42,320 INFO L282 CfgBuilder]: Performing block encoding [2023-12-25 07:17:42,375 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-25 07:17:42,375 INFO L309 CfgBuilder]: Removed 10 assume(true) statements. [2023-12-25 07:17:42,376 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 07:17:42 BoogieIcfgContainer [2023-12-25 07:17:42,376 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-25 07:17:42,379 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-25 07:17:42,379 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-25 07:17:42,381 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-25 07:17:42,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.12 07:17:41" (1/3) ... [2023-12-25 07:17:42,382 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69fb263d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 07:17:42, skipping insertion in model container [2023-12-25 07:17:42,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.12 07:17:41" (2/3) ... [2023-12-25 07:17:42,383 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69fb263d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.12 07:17:42, skipping insertion in model container [2023-12-25 07:17:42,383 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.12 07:17:42" (3/3) ... [2023-12-25 07:17:42,384 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.07.cil-2.c [2023-12-25 07:17:42,396 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-25 07:17:42,397 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-25 07:17:42,458 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-25 07:17:42,463 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;@1b958eb8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-25 07:17:42,463 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-25 07:17:42,468 INFO L276 IsEmpty]: Start isEmpty. Operand has 241 states, 209 states have (on average 1.722488038277512) internal successors, (360), 213 states have internal predecessors, (360), 23 states have call successors, (23), 7 states have call predecessors, (23), 7 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2023-12-25 07:17:42,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 07:17:42,484 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:17:42,485 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] [2023-12-25 07:17:42,486 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:17:42,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:17:42,491 INFO L85 PathProgramCache]: Analyzing trace with hash -877910029, now seen corresponding path program 1 times [2023-12-25 07:17:42,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:17:42,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [221954897] [2023-12-25 07:17:42,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:17:42,502 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 [2023-12-25 07:17:42,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:17:42,505 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) [2023-12-25 07:17:42,509 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 [2023-12-25 07:17:42,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:17:42,685 INFO L262 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:17:42,691 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:17:42,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:17:42,758 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:17:42,758 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:17:42,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [221954897] [2023-12-25 07:17:42,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [221954897] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:17:42,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:17:42,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 07:17:42,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56881564] [2023-12-25 07:17:42,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:17:42,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:17:42,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:17:42,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:17:42,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:17:42,791 INFO L87 Difference]: Start difference. First operand has 241 states, 209 states have (on average 1.722488038277512) internal successors, (360), 213 states have internal predecessors, (360), 23 states have call successors, (23), 7 states have call predecessors, (23), 7 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 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) [2023-12-25 07:17:42,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:17:42,905 INFO L93 Difference]: Finished difference Result 475 states and 802 transitions. [2023-12-25 07:17:42,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:17:42,907 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 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 111 [2023-12-25 07:17:42,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:17:42,915 INFO L225 Difference]: With dead ends: 475 [2023-12-25 07:17:42,915 INFO L226 Difference]: Without dead ends: 238 [2023-12-25 07:17:42,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:17:42,921 INFO L413 NwaCegarLoop]: 352 mSDtfsCounter, 375 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 375 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:17:42,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [375 Valid, 352 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:17:42,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2023-12-25 07:17:42,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 238. [2023-12-25 07:17:42,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 208 states have (on average 1.6153846153846154) internal successors, (336), 210 states have internal predecessors, (336), 23 states have call successors, (23), 7 states have call predecessors, (23), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-12-25 07:17:42,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 380 transitions. [2023-12-25 07:17:42,964 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 380 transitions. Word has length 111 [2023-12-25 07:17:42,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:17:42,965 INFO L495 AbstractCegarLoop]: Abstraction has 238 states and 380 transitions. [2023-12-25 07:17:42,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 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) [2023-12-25 07:17:42,966 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 380 transitions. [2023-12-25 07:17:42,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 07:17:42,968 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:17:42,968 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] [2023-12-25 07:17:42,974 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-25 07:17:43,172 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 [2023-12-25 07:17:43,172 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:17:43,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:17:43,173 INFO L85 PathProgramCache]: Analyzing trace with hash 2027763253, now seen corresponding path program 1 times [2023-12-25 07:17:43,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:17:43,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [478115345] [2023-12-25 07:17:43,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:17:43,174 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 [2023-12-25 07:17:43,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:17:43,175 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) [2023-12-25 07:17:43,204 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 [2023-12-25 07:17:43,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:17:43,287 INFO L262 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 07:17:43,290 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:17:43,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:17:43,381 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:17:43,381 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:17:43,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [478115345] [2023-12-25 07:17:43,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [478115345] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:17:43,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:17:43,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:17:43,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660178743] [2023-12-25 07:17:43,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:17:43,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 07:17:43,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:17:43,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 07:17:43,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 07:17:43,384 INFO L87 Difference]: Start difference. First operand 238 states and 380 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 3 states have internal predecessors, (100), 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) [2023-12-25 07:17:43,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:17:43,904 INFO L93 Difference]: Finished difference Result 717 states and 1155 transitions. [2023-12-25 07:17:43,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 07:17:43,905 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 3 states have internal predecessors, (100), 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 111 [2023-12-25 07:17:43,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:17:43,912 INFO L225 Difference]: With dead ends: 717 [2023-12-25 07:17:43,913 INFO L226 Difference]: Without dead ends: 492 [2023-12-25 07:17:43,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 07:17:43,915 INFO L413 NwaCegarLoop]: 279 mSDtfsCounter, 702 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 717 SdHoareTripleChecker+Valid, 975 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 07:17:43,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [717 Valid, 975 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 07:17:43,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2023-12-25 07:17:43,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 471. [2023-12-25 07:17:43,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 418 states have (on average 1.624401913875598) internal successors, (679), 421 states have internal predecessors, (679), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 37 states have call predecessors, (38), 37 states have call successors, (38) [2023-12-25 07:17:43,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 756 transitions. [2023-12-25 07:17:43,955 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 756 transitions. Word has length 111 [2023-12-25 07:17:43,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:17:43,955 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 756 transitions. [2023-12-25 07:17:43,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 3 states have internal predecessors, (100), 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) [2023-12-25 07:17:43,956 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 756 transitions. [2023-12-25 07:17:43,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 07:17:43,957 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:17:43,957 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] [2023-12-25 07:17:43,965 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 [2023-12-25 07:17:44,166 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 [2023-12-25 07:17:44,167 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:17:44,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:17:44,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1272951247, now seen corresponding path program 1 times [2023-12-25 07:17:44,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:17:44,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [669845504] [2023-12-25 07:17:44,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:17:44,168 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 [2023-12-25 07:17:44,168 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:17:44,169 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) [2023-12-25 07:17:44,171 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 [2023-12-25 07:17:44,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:17:44,269 INFO L262 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 07:17:44,272 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:17:44,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:17:44,338 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:17:44,338 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:17:44,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [669845504] [2023-12-25 07:17:44,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [669845504] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:17:44,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:17:44,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:17:44,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322599584] [2023-12-25 07:17:44,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:17:44,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 07:17:44,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:17:44,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 07:17:44,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 07:17:44,340 INFO L87 Difference]: Start difference. First operand 471 states and 756 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2023-12-25 07:17:44,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:17:44,644 INFO L93 Difference]: Finished difference Result 929 states and 1497 transitions. [2023-12-25 07:17:44,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 07:17:44,644 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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 111 [2023-12-25 07:17:44,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:17:44,647 INFO L225 Difference]: With dead ends: 929 [2023-12-25 07:17:44,647 INFO L226 Difference]: Without dead ends: 471 [2023-12-25 07:17:44,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 07:17:44,649 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 498 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 07:17:44,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 611 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 07:17:44,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2023-12-25 07:17:44,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 471. [2023-12-25 07:17:44,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 418 states have (on average 1.6076555023923444) internal successors, (672), 421 states have internal predecessors, (672), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 37 states have call predecessors, (38), 37 states have call successors, (38) [2023-12-25 07:17:44,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 749 transitions. [2023-12-25 07:17:44,669 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 749 transitions. Word has length 111 [2023-12-25 07:17:44,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:17:44,670 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 749 transitions. [2023-12-25 07:17:44,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2023-12-25 07:17:44,670 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 749 transitions. [2023-12-25 07:17:44,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 07:17:44,671 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:17:44,671 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] [2023-12-25 07:17:44,689 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 [2023-12-25 07:17:44,875 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 [2023-12-25 07:17:44,875 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:17:44,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:17:44,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1677800749, now seen corresponding path program 1 times [2023-12-25 07:17:44,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:17:44,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [782921413] [2023-12-25 07:17:44,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:17:44,877 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 [2023-12-25 07:17:44,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:17:44,878 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) [2023-12-25 07:17:44,879 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 [2023-12-25 07:17:44,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:17:44,989 INFO L262 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 07:17:44,992 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:17:45,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:17:45,047 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:17:45,047 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:17:45,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [782921413] [2023-12-25 07:17:45,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [782921413] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:17:45,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:17:45,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:17:45,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014508852] [2023-12-25 07:17:45,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:17:45,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 07:17:45,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:17:45,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 07:17:45,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 07:17:45,048 INFO L87 Difference]: Start difference. First operand 471 states and 749 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2023-12-25 07:17:45,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:17:45,355 INFO L93 Difference]: Finished difference Result 929 states and 1483 transitions. [2023-12-25 07:17:45,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 07:17:45,356 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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 111 [2023-12-25 07:17:45,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:17:45,358 INFO L225 Difference]: With dead ends: 929 [2023-12-25 07:17:45,358 INFO L226 Difference]: Without dead ends: 471 [2023-12-25 07:17:45,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 07:17:45,359 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 492 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 507 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 07:17:45,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [507 Valid, 604 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 07:17:45,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2023-12-25 07:17:45,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 471. [2023-12-25 07:17:45,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 418 states have (on average 1.5909090909090908) internal successors, (665), 421 states have internal predecessors, (665), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 37 states have call predecessors, (38), 37 states have call successors, (38) [2023-12-25 07:17:45,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 742 transitions. [2023-12-25 07:17:45,380 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 742 transitions. Word has length 111 [2023-12-25 07:17:45,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:17:45,380 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 742 transitions. [2023-12-25 07:17:45,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2023-12-25 07:17:45,380 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 742 transitions. [2023-12-25 07:17:45,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 07:17:45,381 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:17:45,381 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] [2023-12-25 07:17:45,385 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 [2023-12-25 07:17:45,585 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 [2023-12-25 07:17:45,585 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:17:45,585 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:17:45,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1495891633, now seen corresponding path program 1 times [2023-12-25 07:17:45,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:17:45,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1105701822] [2023-12-25 07:17:45,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:17:45,586 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:17:45,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:17:45,587 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) [2023-12-25 07:17:45,592 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 [2023-12-25 07:17:45,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:17:45,705 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 07:17:45,708 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:17:45,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:17:45,757 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:17:45,757 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:17:45,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1105701822] [2023-12-25 07:17:45,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1105701822] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:17:45,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:17:45,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:17:45,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182966663] [2023-12-25 07:17:45,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:17:45,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 07:17:45,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:17:45,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 07:17:45,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 07:17:45,759 INFO L87 Difference]: Start difference. First operand 471 states and 742 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2023-12-25 07:17:46,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:17:46,029 INFO L93 Difference]: Finished difference Result 929 states and 1469 transitions. [2023-12-25 07:17:46,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 07:17:46,030 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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 111 [2023-12-25 07:17:46,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:17:46,032 INFO L225 Difference]: With dead ends: 929 [2023-12-25 07:17:46,032 INFO L226 Difference]: Without dead ends: 471 [2023-12-25 07:17:46,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 07:17:46,034 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 486 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 07:17:46,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 597 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 07:17:46,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2023-12-25 07:17:46,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 471. [2023-12-25 07:17:46,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 418 states have (on average 1.5741626794258374) internal successors, (658), 421 states have internal predecessors, (658), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 37 states have call predecessors, (38), 37 states have call successors, (38) [2023-12-25 07:17:46,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 735 transitions. [2023-12-25 07:17:46,056 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 735 transitions. Word has length 111 [2023-12-25 07:17:46,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:17:46,056 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 735 transitions. [2023-12-25 07:17:46,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2023-12-25 07:17:46,056 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 735 transitions. [2023-12-25 07:17:46,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 07:17:46,057 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:17:46,057 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] [2023-12-25 07:17:46,076 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 [2023-12-25 07:17:46,261 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 [2023-12-25 07:17:46,261 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:17:46,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:17:46,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1490023597, now seen corresponding path program 1 times [2023-12-25 07:17:46,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:17:46,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1976536856] [2023-12-25 07:17:46,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:17:46,262 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 [2023-12-25 07:17:46,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:17:46,265 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) [2023-12-25 07:17:46,266 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 [2023-12-25 07:17:46,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:17:46,356 INFO L262 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 07:17:46,358 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:17:46,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:17:46,408 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:17:46,408 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:17:46,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1976536856] [2023-12-25 07:17:46,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1976536856] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:17:46,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:17:46,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:17:46,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557726607] [2023-12-25 07:17:46,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:17:46,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 07:17:46,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:17:46,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 07:17:46,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 07:17:46,410 INFO L87 Difference]: Start difference. First operand 471 states and 735 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2023-12-25 07:17:46,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:17:46,686 INFO L93 Difference]: Finished difference Result 929 states and 1455 transitions. [2023-12-25 07:17:46,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 07:17:46,687 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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 111 [2023-12-25 07:17:46,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:17:46,689 INFO L225 Difference]: With dead ends: 929 [2023-12-25 07:17:46,689 INFO L226 Difference]: Without dead ends: 471 [2023-12-25 07:17:46,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 07:17:46,690 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 480 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 07:17:46,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 590 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 07:17:46,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2023-12-25 07:17:46,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 471. [2023-12-25 07:17:46,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 418 states have (on average 1.5574162679425838) internal successors, (651), 421 states have internal predecessors, (651), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 37 states have call predecessors, (38), 37 states have call successors, (38) [2023-12-25 07:17:46,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 728 transitions. [2023-12-25 07:17:46,727 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 728 transitions. Word has length 111 [2023-12-25 07:17:46,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:17:46,728 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 728 transitions. [2023-12-25 07:17:46,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2023-12-25 07:17:46,728 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 728 transitions. [2023-12-25 07:17:46,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 07:17:46,728 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:17:46,728 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:17:46,734 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-25 07:17:46,932 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 [2023-12-25 07:17:46,932 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:17:46,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:17:46,933 INFO L85 PathProgramCache]: Analyzing trace with hash 935644977, now seen corresponding path program 1 times [2023-12-25 07:17:46,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:17:46,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1816515829] [2023-12-25 07:17:46,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:17:46,933 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 [2023-12-25 07:17:46,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:17:46,935 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) [2023-12-25 07:17:46,967 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 [2023-12-25 07:17:47,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:17:47,022 INFO L262 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 07:17:47,024 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:17:47,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:17:47,071 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:17:47,071 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:17:47,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1816515829] [2023-12-25 07:17:47,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1816515829] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:17:47,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:17:47,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:17:47,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527066948] [2023-12-25 07:17:47,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:17:47,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 07:17:47,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:17:47,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 07:17:47,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 07:17:47,072 INFO L87 Difference]: Start difference. First operand 471 states and 728 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2023-12-25 07:17:47,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:17:47,343 INFO L93 Difference]: Finished difference Result 929 states and 1441 transitions. [2023-12-25 07:17:47,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 07:17:47,343 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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 111 [2023-12-25 07:17:47,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:17:47,345 INFO L225 Difference]: With dead ends: 929 [2023-12-25 07:17:47,345 INFO L226 Difference]: Without dead ends: 471 [2023-12-25 07:17:47,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 07:17:47,347 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 474 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 07:17:47,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 583 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 07:17:47,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2023-12-25 07:17:47,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 471. [2023-12-25 07:17:47,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 418 states have (on average 1.5406698564593302) internal successors, (644), 421 states have internal predecessors, (644), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 37 states have call predecessors, (38), 37 states have call successors, (38) [2023-12-25 07:17:47,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 721 transitions. [2023-12-25 07:17:47,370 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 721 transitions. Word has length 111 [2023-12-25 07:17:47,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:17:47,370 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 721 transitions. [2023-12-25 07:17:47,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2023-12-25 07:17:47,370 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 721 transitions. [2023-12-25 07:17:47,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 07:17:47,371 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:17:47,371 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] [2023-12-25 07:17:47,377 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 [2023-12-25 07:17:47,575 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 [2023-12-25 07:17:47,575 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:17:47,576 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:17:47,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1482259089, now seen corresponding path program 1 times [2023-12-25 07:17:47,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:17:47,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [977407139] [2023-12-25 07:17:47,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:17:47,576 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 [2023-12-25 07:17:47,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:17:47,594 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) [2023-12-25 07:17:47,600 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 [2023-12-25 07:17:47,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:17:47,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 07:17:47,719 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:17:47,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:17:47,769 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:17:47,769 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:17:47,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [977407139] [2023-12-25 07:17:47,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [977407139] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:17:47,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:17:47,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:17:47,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562259311] [2023-12-25 07:17:47,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:17:47,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 07:17:47,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:17:47,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 07:17:47,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 07:17:47,772 INFO L87 Difference]: Start difference. First operand 471 states and 721 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2023-12-25 07:17:48,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:17:48,039 INFO L93 Difference]: Finished difference Result 929 states and 1427 transitions. [2023-12-25 07:17:48,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 07:17:48,040 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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 111 [2023-12-25 07:17:48,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:17:48,043 INFO L225 Difference]: With dead ends: 929 [2023-12-25 07:17:48,043 INFO L226 Difference]: Without dead ends: 471 [2023-12-25 07:17:48,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 07:17:48,045 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 468 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 483 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 07:17:48,045 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [483 Valid, 576 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 07:17:48,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states. [2023-12-25 07:17:48,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 471. [2023-12-25 07:17:48,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 418 states have (on average 1.5239234449760766) internal successors, (637), 421 states have internal predecessors, (637), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 37 states have call predecessors, (38), 37 states have call successors, (38) [2023-12-25 07:17:48,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 714 transitions. [2023-12-25 07:17:48,071 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 714 transitions. Word has length 111 [2023-12-25 07:17:48,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:17:48,071 INFO L495 AbstractCegarLoop]: Abstraction has 471 states and 714 transitions. [2023-12-25 07:17:48,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2023-12-25 07:17:48,071 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 714 transitions. [2023-12-25 07:17:48,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 07:17:48,072 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:17:48,072 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] [2023-12-25 07:17:48,078 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 [2023-12-25 07:17:48,275 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 [2023-12-25 07:17:48,276 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:17:48,276 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:17:48,276 INFO L85 PathProgramCache]: Analyzing trace with hash -329764621, now seen corresponding path program 1 times [2023-12-25 07:17:48,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:17:48,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [34581589] [2023-12-25 07:17:48,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:17:48,277 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 [2023-12-25 07:17:48,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:17:48,337 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) [2023-12-25 07:17:48,339 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 [2023-12-25 07:17:48,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:17:48,420 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 07:17:48,422 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:17:48,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:17:48,465 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:17:48,465 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:17:48,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [34581589] [2023-12-25 07:17:48,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [34581589] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:17:48,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:17:48,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:17:48,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580259602] [2023-12-25 07:17:48,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:17:48,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 07:17:48,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:17:48,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 07:17:48,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 07:17:48,468 INFO L87 Difference]: Start difference. First operand 471 states and 714 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2023-12-25 07:17:48,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:17:48,875 INFO L93 Difference]: Finished difference Result 1035 states and 1585 transitions. [2023-12-25 07:17:48,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 07:17:48,875 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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 111 [2023-12-25 07:17:48,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:17:48,878 INFO L225 Difference]: With dead ends: 1035 [2023-12-25 07:17:48,878 INFO L226 Difference]: Without dead ends: 577 [2023-12-25 07:17:48,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 07:17:48,881 INFO L413 NwaCegarLoop]: 222 mSDtfsCounter, 531 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-25 07:17:48,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 570 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-25 07:17:48,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2023-12-25 07:17:48,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 577. [2023-12-25 07:17:48,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 518 states have (on average 1.498069498069498) internal successors, (776), 521 states have internal predecessors, (776), 41 states have call successors, (41), 17 states have call predecessors, (41), 17 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-25 07:17:48,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 857 transitions. [2023-12-25 07:17:48,912 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 857 transitions. Word has length 111 [2023-12-25 07:17:48,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:17:48,913 INFO L495 AbstractCegarLoop]: Abstraction has 577 states and 857 transitions. [2023-12-25 07:17:48,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2023-12-25 07:17:48,913 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 857 transitions. [2023-12-25 07:17:48,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 07:17:48,913 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:17:48,914 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] [2023-12-25 07:17:48,917 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 [2023-12-25 07:17:49,117 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 [2023-12-25 07:17:49,117 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:17:49,118 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:17:49,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1183300850, now seen corresponding path program 1 times [2023-12-25 07:17:49,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:17:49,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1282392772] [2023-12-25 07:17:49,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:17:49,119 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:17:49,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:17:49,120 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) [2023-12-25 07:17:49,168 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 [2023-12-25 07:17:49,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:17:49,221 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 07:17:49,223 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:17:49,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:17:49,266 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:17:49,267 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:17:49,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1282392772] [2023-12-25 07:17:49,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1282392772] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:17:49,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:17:49,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:17:49,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435431414] [2023-12-25 07:17:49,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:17:49,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 07:17:49,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:17:49,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 07:17:49,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 07:17:49,268 INFO L87 Difference]: Start difference. First operand 577 states and 857 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2023-12-25 07:17:49,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:17:49,622 INFO L93 Difference]: Finished difference Result 1247 states and 1871 transitions. [2023-12-25 07:17:49,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 07:17:49,622 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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 111 [2023-12-25 07:17:49,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:17:49,626 INFO L225 Difference]: With dead ends: 1247 [2023-12-25 07:17:49,626 INFO L226 Difference]: Without dead ends: 683 [2023-12-25 07:17:49,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 07:17:49,629 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 523 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 538 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 07:17:49,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [538 Valid, 563 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 07:17:49,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2023-12-25 07:17:49,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 683. [2023-12-25 07:17:49,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 683 states, 618 states have (on average 1.4741100323624596) internal successors, (911), 621 states have internal predecessors, (911), 43 states have call successors, (43), 21 states have call predecessors, (43), 21 states have return successors, (42), 41 states have call predecessors, (42), 41 states have call successors, (42) [2023-12-25 07:17:49,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 996 transitions. [2023-12-25 07:17:49,670 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 996 transitions. Word has length 111 [2023-12-25 07:17:49,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:17:49,671 INFO L495 AbstractCegarLoop]: Abstraction has 683 states and 996 transitions. [2023-12-25 07:17:49,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2023-12-25 07:17:49,671 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 996 transitions. [2023-12-25 07:17:49,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 07:17:49,672 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:17:49,672 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] [2023-12-25 07:17:49,691 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 (11)] Ended with exit code 0 [2023-12-25 07:17:49,875 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 [2023-12-25 07:17:49,876 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:17:49,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:17:49,876 INFO L85 PathProgramCache]: Analyzing trace with hash -158896407, now seen corresponding path program 1 times [2023-12-25 07:17:49,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:17:49,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [963205894] [2023-12-25 07:17:49,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:17:49,877 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 [2023-12-25 07:17:49,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:17:49,878 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) [2023-12-25 07:17:49,905 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 (12)] Waiting until timeout for monitored process [2023-12-25 07:17:49,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:17:49,963 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 07:17:49,965 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:17:50,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:17:50,004 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:17:50,004 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:17:50,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [963205894] [2023-12-25 07:17:50,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [963205894] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:17:50,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:17:50,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:17:50,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756038390] [2023-12-25 07:17:50,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:17:50,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 07:17:50,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:17:50,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 07:17:50,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 07:17:50,006 INFO L87 Difference]: Start difference. First operand 683 states and 996 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2023-12-25 07:17:50,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:17:50,287 INFO L93 Difference]: Finished difference Result 1459 states and 2149 transitions. [2023-12-25 07:17:50,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 07:17:50,288 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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 111 [2023-12-25 07:17:50,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:17:50,290 INFO L225 Difference]: With dead ends: 1459 [2023-12-25 07:17:50,291 INFO L226 Difference]: Without dead ends: 789 [2023-12-25 07:17:50,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 07:17:50,292 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 517 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 532 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 07:17:50,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [532 Valid, 556 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 07:17:50,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2023-12-25 07:17:50,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 789. [2023-12-25 07:17:50,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 718 states have (on average 1.4512534818941505) internal successors, (1042), 721 states have internal predecessors, (1042), 45 states have call successors, (45), 25 states have call predecessors, (45), 25 states have return successors, (44), 43 states have call predecessors, (44), 43 states have call successors, (44) [2023-12-25 07:17:50,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1131 transitions. [2023-12-25 07:17:50,324 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1131 transitions. Word has length 111 [2023-12-25 07:17:50,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:17:50,324 INFO L495 AbstractCegarLoop]: Abstraction has 789 states and 1131 transitions. [2023-12-25 07:17:50,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2023-12-25 07:17:50,324 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1131 transitions. [2023-12-25 07:17:50,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 07:17:50,325 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:17:50,325 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] [2023-12-25 07:17:50,330 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 [2023-12-25 07:17:50,528 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 [2023-12-25 07:17:50,528 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:17:50,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:17:50,529 INFO L85 PathProgramCache]: Analyzing trace with hash 940680238, now seen corresponding path program 1 times [2023-12-25 07:17:50,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:17:50,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1362859976] [2023-12-25 07:17:50,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:17:50,529 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 [2023-12-25 07:17:50,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:17:50,530 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) [2023-12-25 07:17:50,535 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 [2023-12-25 07:17:50,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:17:50,608 INFO L262 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 07:17:50,610 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:17:50,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:17:50,675 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:17:50,675 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:17:50,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1362859976] [2023-12-25 07:17:50,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1362859976] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:17:50,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:17:50,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:17:50,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551554163] [2023-12-25 07:17:50,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:17:50,675 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 07:17:50,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:17:50,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 07:17:50,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 07:17:50,676 INFO L87 Difference]: Start difference. First operand 789 states and 1131 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2023-12-25 07:17:51,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:17:51,019 INFO L93 Difference]: Finished difference Result 1671 states and 2419 transitions. [2023-12-25 07:17:51,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 07:17:51,020 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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 111 [2023-12-25 07:17:51,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:17:51,023 INFO L225 Difference]: With dead ends: 1671 [2023-12-25 07:17:51,023 INFO L226 Difference]: Without dead ends: 895 [2023-12-25 07:17:51,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 07:17:51,025 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 510 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 549 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 07:17:51,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [525 Valid, 549 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 07:17:51,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2023-12-25 07:17:51,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 895. [2023-12-25 07:17:51,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 895 states, 818 states have (on average 1.4290953545232274) internal successors, (1169), 821 states have internal predecessors, (1169), 47 states have call successors, (47), 29 states have call predecessors, (47), 29 states have return successors, (46), 45 states have call predecessors, (46), 45 states have call successors, (46) [2023-12-25 07:17:51,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 1262 transitions. [2023-12-25 07:17:51,058 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 1262 transitions. Word has length 111 [2023-12-25 07:17:51,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:17:51,058 INFO L495 AbstractCegarLoop]: Abstraction has 895 states and 1262 transitions. [2023-12-25 07:17:51,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2023-12-25 07:17:51,058 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 1262 transitions. [2023-12-25 07:17:51,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 07:17:51,059 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:17:51,059 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] [2023-12-25 07:17:51,063 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 [2023-12-25 07:17:51,263 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 [2023-12-25 07:17:51,263 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:17:51,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:17:51,263 INFO L85 PathProgramCache]: Analyzing trace with hash -719595990, now seen corresponding path program 1 times [2023-12-25 07:17:51,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:17:51,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [63326011] [2023-12-25 07:17:51,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:17:51,265 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 [2023-12-25 07:17:51,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:17:51,272 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) [2023-12-25 07:17:51,273 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 [2023-12-25 07:17:51,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:17:51,346 INFO L262 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 07:17:51,347 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:17:51,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:17:51,387 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:17:51,387 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:17:51,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [63326011] [2023-12-25 07:17:51,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [63326011] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:17:51,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:17:51,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:17:51,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492445760] [2023-12-25 07:17:51,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:17:51,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 07:17:51,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:17:51,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 07:17:51,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 07:17:51,389 INFO L87 Difference]: Start difference. First operand 895 states and 1262 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2023-12-25 07:17:51,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:17:51,749 INFO L93 Difference]: Finished difference Result 1883 states and 2681 transitions. [2023-12-25 07:17:51,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 07:17:51,750 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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 111 [2023-12-25 07:17:51,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:17:51,752 INFO L225 Difference]: With dead ends: 1883 [2023-12-25 07:17:51,752 INFO L226 Difference]: Without dead ends: 1001 [2023-12-25 07:17:51,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 07:17:51,754 INFO L413 NwaCegarLoop]: 210 mSDtfsCounter, 503 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 542 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 07:17:51,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 542 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 07:17:51,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2023-12-25 07:17:51,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 1001. [2023-12-25 07:17:51,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 918 states have (on average 1.4074074074074074) internal successors, (1292), 921 states have internal predecessors, (1292), 49 states have call successors, (49), 33 states have call predecessors, (49), 33 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-25 07:17:51,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1389 transitions. [2023-12-25 07:17:51,791 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1389 transitions. Word has length 111 [2023-12-25 07:17:51,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:17:51,791 INFO L495 AbstractCegarLoop]: Abstraction has 1001 states and 1389 transitions. [2023-12-25 07:17:51,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2023-12-25 07:17:51,791 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1389 transitions. [2023-12-25 07:17:51,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 07:17:51,792 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:17:51,792 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] [2023-12-25 07:17:51,810 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 (14)] Ended with exit code 0 [2023-12-25 07:17:51,996 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 [2023-12-25 07:17:51,996 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:17:51,997 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:17:51,997 INFO L85 PathProgramCache]: Analyzing trace with hash -1072879185, now seen corresponding path program 1 times [2023-12-25 07:17:51,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:17:51,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [286372011] [2023-12-25 07:17:51,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:17:51,997 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 [2023-12-25 07:17:51,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:17:51,998 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) [2023-12-25 07:17:52,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-25 07:17:52,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:17:52,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 07:17:52,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:17:52,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:17:52,113 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:17:52,113 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:17:52,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [286372011] [2023-12-25 07:17:52,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [286372011] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:17:52,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:17:52,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:17:52,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128871709] [2023-12-25 07:17:52,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:17:52,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 07:17:52,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:17:52,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 07:17:52,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 07:17:52,115 INFO L87 Difference]: Start difference. First operand 1001 states and 1389 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2023-12-25 07:17:52,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:17:52,474 INFO L93 Difference]: Finished difference Result 2095 states and 2935 transitions. [2023-12-25 07:17:52,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 07:17:52,474 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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 111 [2023-12-25 07:17:52,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:17:52,477 INFO L225 Difference]: With dead ends: 2095 [2023-12-25 07:17:52,477 INFO L226 Difference]: Without dead ends: 1107 [2023-12-25 07:17:52,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 07:17:52,479 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 496 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 511 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 07:17:52,479 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [511 Valid, 535 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 07:17:52,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1107 states. [2023-12-25 07:17:52,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1107 to 1107. [2023-12-25 07:17:52,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1107 states, 1018 states have (on average 1.3860510805500983) internal successors, (1411), 1021 states have internal predecessors, (1411), 51 states have call successors, (51), 37 states have call predecessors, (51), 37 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-25 07:17:52,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1107 states to 1107 states and 1512 transitions. [2023-12-25 07:17:52,518 INFO L78 Accepts]: Start accepts. Automaton has 1107 states and 1512 transitions. Word has length 111 [2023-12-25 07:17:52,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:17:52,518 INFO L495 AbstractCegarLoop]: Abstraction has 1107 states and 1512 transitions. [2023-12-25 07:17:52,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2023-12-25 07:17:52,518 INFO L276 IsEmpty]: Start isEmpty. Operand 1107 states and 1512 transitions. [2023-12-25 07:17:52,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 07:17:52,519 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:17:52,519 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:17:52,544 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 [2023-12-25 07:17:52,722 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 [2023-12-25 07:17:52,723 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:17:52,723 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:17:52,723 INFO L85 PathProgramCache]: Analyzing trace with hash 493878765, now seen corresponding path program 1 times [2023-12-25 07:17:52,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:17:52,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1440827202] [2023-12-25 07:17:52,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:17:52,724 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:17:52,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:17:52,733 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) [2023-12-25 07:17:52,734 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 [2023-12-25 07:17:52,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:17:52,818 INFO L262 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 07:17:52,819 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:17:52,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:17:52,869 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:17:52,869 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:17:52,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1440827202] [2023-12-25 07:17:52,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1440827202] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:17:52,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:17:52,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:17:52,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428467079] [2023-12-25 07:17:52,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:17:52,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 07:17:52,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:17:52,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 07:17:52,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 07:17:52,870 INFO L87 Difference]: Start difference. First operand 1107 states and 1512 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2023-12-25 07:17:53,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:17:53,244 INFO L93 Difference]: Finished difference Result 2307 states and 3181 transitions. [2023-12-25 07:17:53,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 07:17:53,244 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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 111 [2023-12-25 07:17:53,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:17:53,248 INFO L225 Difference]: With dead ends: 2307 [2023-12-25 07:17:53,248 INFO L226 Difference]: Without dead ends: 1213 [2023-12-25 07:17:53,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 07:17:53,251 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 489 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 07:17:53,251 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [504 Valid, 528 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 07:17:53,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2023-12-25 07:17:53,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 1213. [2023-12-25 07:17:53,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1213 states, 1118 states have (on average 1.364937388193202) internal successors, (1526), 1121 states have internal predecessors, (1526), 53 states have call successors, (53), 41 states have call predecessors, (53), 41 states have return successors, (52), 51 states have call predecessors, (52), 51 states have call successors, (52) [2023-12-25 07:17:53,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1213 states to 1213 states and 1631 transitions. [2023-12-25 07:17:53,293 INFO L78 Accepts]: Start accepts. Automaton has 1213 states and 1631 transitions. Word has length 111 [2023-12-25 07:17:53,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:17:53,294 INFO L495 AbstractCegarLoop]: Abstraction has 1213 states and 1631 transitions. [2023-12-25 07:17:53,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2023-12-25 07:17:53,294 INFO L276 IsEmpty]: Start isEmpty. Operand 1213 states and 1631 transitions. [2023-12-25 07:17:53,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 07:17:53,294 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:17:53,295 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] [2023-12-25 07:17:53,300 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-25 07:17:53,498 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 [2023-12-25 07:17:53,498 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:17:53,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:17:53,498 INFO L85 PathProgramCache]: Analyzing trace with hash 1556889522, now seen corresponding path program 1 times [2023-12-25 07:17:53,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:17:53,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [997414574] [2023-12-25 07:17:53,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:17:53,499 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 [2023-12-25 07:17:53,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:17:53,500 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) [2023-12-25 07:17:53,530 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 [2023-12-25 07:17:53,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:17:53,575 INFO L262 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 07:17:53,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:17:53,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:17:53,589 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:17:53,590 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:17:53,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [997414574] [2023-12-25 07:17:53,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [997414574] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:17:53,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:17:53,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:17:53,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122177926] [2023-12-25 07:17:53,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:17:53,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 07:17:53,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:17:53,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 07:17:53,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:17:53,591 INFO L87 Difference]: Start difference. First operand 1213 states and 1631 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2023-12-25 07:17:53,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:17:53,693 INFO L93 Difference]: Finished difference Result 2504 states and 3398 transitions. [2023-12-25 07:17:53,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 07:17:53,694 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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 111 [2023-12-25 07:17:53,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:17:53,699 INFO L225 Difference]: With dead ends: 2504 [2023-12-25 07:17:53,700 INFO L226 Difference]: Without dead ends: 1305 [2023-12-25 07:17:53,702 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:17:53,702 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 65 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:17:53,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 925 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:17:53,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1305 states. [2023-12-25 07:17:53,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1305 to 1217. [2023-12-25 07:17:53,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1217 states, 1122 states have (on average 1.3511586452762923) internal successors, (1516), 1125 states have internal predecessors, (1516), 53 states have call successors, (53), 41 states have call predecessors, (53), 41 states have return successors, (52), 51 states have call predecessors, (52), 51 states have call successors, (52) [2023-12-25 07:17:53,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1217 states to 1217 states and 1621 transitions. [2023-12-25 07:17:53,748 INFO L78 Accepts]: Start accepts. Automaton has 1217 states and 1621 transitions. Word has length 111 [2023-12-25 07:17:53,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:17:53,748 INFO L495 AbstractCegarLoop]: Abstraction has 1217 states and 1621 transitions. [2023-12-25 07:17:53,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2023-12-25 07:17:53,748 INFO L276 IsEmpty]: Start isEmpty. Operand 1217 states and 1621 transitions. [2023-12-25 07:17:53,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 07:17:53,749 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:17:53,749 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] [2023-12-25 07:17:53,768 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 [2023-12-25 07:17:53,954 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 [2023-12-25 07:17:53,954 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:17:53,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:17:53,955 INFO L85 PathProgramCache]: Analyzing trace with hash -354153036, now seen corresponding path program 1 times [2023-12-25 07:17:53,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:17:53,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1373426389] [2023-12-25 07:17:53,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:17:53,955 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 [2023-12-25 07:17:53,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:17:53,956 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) [2023-12-25 07:17:53,957 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 [2023-12-25 07:17:54,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:17:54,031 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 07:17:54,033 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:17:54,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:17:54,043 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:17:54,043 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:17:54,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1373426389] [2023-12-25 07:17:54,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1373426389] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:17:54,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:17:54,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:17:54,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484568265] [2023-12-25 07:17:54,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:17:54,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 07:17:54,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:17:54,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 07:17:54,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:17:54,045 INFO L87 Difference]: Start difference. First operand 1217 states and 1621 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2023-12-25 07:17:54,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:17:54,144 INFO L93 Difference]: Finished difference Result 3060 states and 4118 transitions. [2023-12-25 07:17:54,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 07:17:54,144 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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 111 [2023-12-25 07:17:54,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:17:54,148 INFO L225 Difference]: With dead ends: 3060 [2023-12-25 07:17:54,149 INFO L226 Difference]: Without dead ends: 1857 [2023-12-25 07:17:54,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:17:54,151 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 56 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:17:54,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 931 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:17:54,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1857 states. [2023-12-25 07:17:54,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1857 to 1249. [2023-12-25 07:17:54,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1249 states, 1154 states have (on average 1.341421143847487) internal successors, (1548), 1157 states have internal predecessors, (1548), 53 states have call successors, (53), 41 states have call predecessors, (53), 41 states have return successors, (52), 51 states have call predecessors, (52), 51 states have call successors, (52) [2023-12-25 07:17:54,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1249 states to 1249 states and 1653 transitions. [2023-12-25 07:17:54,195 INFO L78 Accepts]: Start accepts. Automaton has 1249 states and 1653 transitions. Word has length 111 [2023-12-25 07:17:54,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:17:54,195 INFO L495 AbstractCegarLoop]: Abstraction has 1249 states and 1653 transitions. [2023-12-25 07:17:54,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2023-12-25 07:17:54,195 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states and 1653 transitions. [2023-12-25 07:17:54,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 07:17:54,196 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:17:54,196 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] [2023-12-25 07:17:54,199 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 [2023-12-25 07:17:54,399 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 [2023-12-25 07:17:54,400 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:17:54,400 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:17:54,400 INFO L85 PathProgramCache]: Analyzing trace with hash 599787122, now seen corresponding path program 1 times [2023-12-25 07:17:54,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:17:54,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1158246407] [2023-12-25 07:17:54,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:17:54,401 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 [2023-12-25 07:17:54,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:17:54,402 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) [2023-12-25 07:17:54,432 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 [2023-12-25 07:17:54,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:17:54,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 07:17:54,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:17:54,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:17:54,491 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:17:54,491 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:17:54,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1158246407] [2023-12-25 07:17:54,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1158246407] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:17:54,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:17:54,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:17:54,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923800075] [2023-12-25 07:17:54,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:17:54,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 07:17:54,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:17:54,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 07:17:54,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:17:54,492 INFO L87 Difference]: Start difference. First operand 1249 states and 1653 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2023-12-25 07:17:54,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:17:54,580 INFO L93 Difference]: Finished difference Result 2552 states and 3408 transitions. [2023-12-25 07:17:54,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 07:17:54,581 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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 111 [2023-12-25 07:17:54,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:17:54,584 INFO L225 Difference]: With dead ends: 2552 [2023-12-25 07:17:54,584 INFO L226 Difference]: Without dead ends: 1317 [2023-12-25 07:17:54,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:17:54,586 INFO L413 NwaCegarLoop]: 313 mSDtfsCounter, 47 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 929 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:17:54,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 929 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:17:54,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1317 states. [2023-12-25 07:17:54,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1317 to 1253. [2023-12-25 07:17:54,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1253 states, 1158 states have (on average 1.3281519861830742) internal successors, (1538), 1161 states have internal predecessors, (1538), 53 states have call successors, (53), 41 states have call predecessors, (53), 41 states have return successors, (52), 51 states have call predecessors, (52), 51 states have call successors, (52) [2023-12-25 07:17:54,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 1643 transitions. [2023-12-25 07:17:54,639 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 1643 transitions. Word has length 111 [2023-12-25 07:17:54,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:17:54,639 INFO L495 AbstractCegarLoop]: Abstraction has 1253 states and 1643 transitions. [2023-12-25 07:17:54,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2023-12-25 07:17:54,639 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 1643 transitions. [2023-12-25 07:17:54,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 07:17:54,640 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:17:54,640 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] [2023-12-25 07:17:54,645 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-25 07:17:54,843 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 [2023-12-25 07:17:54,843 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:17:54,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:17:54,844 INFO L85 PathProgramCache]: Analyzing trace with hash 182390516, now seen corresponding path program 1 times [2023-12-25 07:17:54,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:17:54,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1388543757] [2023-12-25 07:17:54,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:17:54,844 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 [2023-12-25 07:17:54,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:17:54,845 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) [2023-12-25 07:17:54,877 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 [2023-12-25 07:17:54,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:17:54,922 INFO L262 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 07:17:54,924 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:17:54,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:17:54,939 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:17:54,939 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:17:54,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1388543757] [2023-12-25 07:17:54,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1388543757] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:17:54,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:17:54,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:17:54,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840348885] [2023-12-25 07:17:54,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:17:54,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 07:17:54,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:17:54,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 07:17:54,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:17:54,940 INFO L87 Difference]: Start difference. First operand 1253 states and 1643 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2023-12-25 07:17:55,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:17:55,035 INFO L93 Difference]: Finished difference Result 2548 states and 3372 transitions. [2023-12-25 07:17:55,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 07:17:55,035 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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 111 [2023-12-25 07:17:55,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:17:55,038 INFO L225 Difference]: With dead ends: 2548 [2023-12-25 07:17:55,038 INFO L226 Difference]: Without dead ends: 1309 [2023-12-25 07:17:55,040 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:17:55,041 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 38 mSDsluCounter, 615 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 927 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:17:55,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 927 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:17:55,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1309 states. [2023-12-25 07:17:55,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1309 to 1257. [2023-12-25 07:17:55,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1257 states, 1162 states have (on average 1.314974182444062) internal successors, (1528), 1165 states have internal predecessors, (1528), 53 states have call successors, (53), 41 states have call predecessors, (53), 41 states have return successors, (52), 51 states have call predecessors, (52), 51 states have call successors, (52) [2023-12-25 07:17:55,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1257 states to 1257 states and 1633 transitions. [2023-12-25 07:17:55,101 INFO L78 Accepts]: Start accepts. Automaton has 1257 states and 1633 transitions. Word has length 111 [2023-12-25 07:17:55,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:17:55,101 INFO L495 AbstractCegarLoop]: Abstraction has 1257 states and 1633 transitions. [2023-12-25 07:17:55,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2023-12-25 07:17:55,101 INFO L276 IsEmpty]: Start isEmpty. Operand 1257 states and 1633 transitions. [2023-12-25 07:17:55,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 07:17:55,102 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:17:55,102 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] [2023-12-25 07:17:55,107 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 [2023-12-25 07:17:55,305 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 [2023-12-25 07:17:55,305 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:17:55,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:17:55,306 INFO L85 PathProgramCache]: Analyzing trace with hash 616119602, now seen corresponding path program 1 times [2023-12-25 07:17:55,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:17:55,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [722558161] [2023-12-25 07:17:55,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:17:55,306 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 [2023-12-25 07:17:55,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:17:55,312 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) [2023-12-25 07:17:55,313 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 [2023-12-25 07:17:55,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:17:55,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 07:17:55,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:17:55,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:17:55,405 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:17:55,405 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:17:55,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [722558161] [2023-12-25 07:17:55,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [722558161] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:17:55,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:17:55,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:17:55,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270999439] [2023-12-25 07:17:55,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:17:55,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 07:17:55,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:17:55,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 07:17:55,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:17:55,406 INFO L87 Difference]: Start difference. First operand 1257 states and 1633 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2023-12-25 07:17:55,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:17:55,527 INFO L93 Difference]: Finished difference Result 2532 states and 3320 transitions. [2023-12-25 07:17:55,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 07:17:55,527 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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 111 [2023-12-25 07:17:55,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:17:55,534 INFO L225 Difference]: With dead ends: 2532 [2023-12-25 07:17:55,534 INFO L226 Difference]: Without dead ends: 1289 [2023-12-25 07:17:55,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:17:55,537 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 20 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 929 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:17:55,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 929 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:17:55,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2023-12-25 07:17:55,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 1261. [2023-12-25 07:17:55,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1261 states, 1166 states have (on average 1.3018867924528301) internal successors, (1518), 1169 states have internal predecessors, (1518), 53 states have call successors, (53), 41 states have call predecessors, (53), 41 states have return successors, (52), 51 states have call predecessors, (52), 51 states have call successors, (52) [2023-12-25 07:17:55,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1261 states to 1261 states and 1623 transitions. [2023-12-25 07:17:55,577 INFO L78 Accepts]: Start accepts. Automaton has 1261 states and 1623 transitions. Word has length 111 [2023-12-25 07:17:55,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:17:55,577 INFO L495 AbstractCegarLoop]: Abstraction has 1261 states and 1623 transitions. [2023-12-25 07:17:55,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2023-12-25 07:17:55,577 INFO L276 IsEmpty]: Start isEmpty. Operand 1261 states and 1623 transitions. [2023-12-25 07:17:55,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 07:17:55,578 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:17:55,578 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] [2023-12-25 07:17:55,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-25 07:17:55,780 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 [2023-12-25 07:17:55,781 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:17:55,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:17:55,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1739685648, now seen corresponding path program 1 times [2023-12-25 07:17:55,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:17:55,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1721671747] [2023-12-25 07:17:55,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:17:55,782 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 [2023-12-25 07:17:55,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:17:55,783 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) [2023-12-25 07:17:55,794 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 [2023-12-25 07:17:55,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:17:55,859 INFO L262 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 07:17:55,879 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:17:55,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:17:55,908 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:17:55,908 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:17:55,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1721671747] [2023-12-25 07:17:55,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1721671747] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:17:55,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:17:55,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:17:55,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191309824] [2023-12-25 07:17:55,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:17:55,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 07:17:55,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:17:55,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 07:17:55,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:17:55,909 INFO L87 Difference]: Start difference. First operand 1261 states and 1623 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2023-12-25 07:17:56,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:17:56,018 INFO L93 Difference]: Finished difference Result 2528 states and 3284 transitions. [2023-12-25 07:17:56,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 07:17:56,019 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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 111 [2023-12-25 07:17:56,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:17:56,022 INFO L225 Difference]: With dead ends: 2528 [2023-12-25 07:17:56,022 INFO L226 Difference]: Without dead ends: 1281 [2023-12-25 07:17:56,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:17:56,025 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 11 mSDsluCounter, 618 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 930 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:17:56,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 930 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:17:56,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1281 states. [2023-12-25 07:17:56,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1281 to 1265. [2023-12-25 07:17:56,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 1170 states have (on average 1.288888888888889) internal successors, (1508), 1173 states have internal predecessors, (1508), 53 states have call successors, (53), 41 states have call predecessors, (53), 41 states have return successors, (52), 51 states have call predecessors, (52), 51 states have call successors, (52) [2023-12-25 07:17:56,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 1613 transitions. [2023-12-25 07:17:56,070 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 1613 transitions. Word has length 111 [2023-12-25 07:17:56,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:17:56,071 INFO L495 AbstractCegarLoop]: Abstraction has 1265 states and 1613 transitions. [2023-12-25 07:17:56,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2023-12-25 07:17:56,071 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 1613 transitions. [2023-12-25 07:17:56,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 07:17:56,071 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:17:56,071 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] [2023-12-25 07:17:56,075 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 [2023-12-25 07:17:56,274 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 [2023-12-25 07:17:56,275 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:17:56,275 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:17:56,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1657888370, now seen corresponding path program 1 times [2023-12-25 07:17:56,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:17:56,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [127839867] [2023-12-25 07:17:56,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:17:56,275 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 [2023-12-25 07:17:56,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:17:56,277 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) [2023-12-25 07:17:56,290 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-25 07:17:56,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:17:56,352 INFO L262 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-25 07:17:56,355 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:17:56,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:17:56,372 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:17:56,372 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:17:56,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [127839867] [2023-12-25 07:17:56,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [127839867] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:17:56,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:17:56,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:17:56,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168808808] [2023-12-25 07:17:56,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:17:56,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 07:17:56,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:17:56,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 07:17:56,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:17:56,383 INFO L87 Difference]: Start difference. First operand 1265 states and 1613 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2023-12-25 07:17:56,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:17:56,493 INFO L93 Difference]: Finished difference Result 2524 states and 3248 transitions. [2023-12-25 07:17:56,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 07:17:56,494 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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 111 [2023-12-25 07:17:56,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:17:56,496 INFO L225 Difference]: With dead ends: 2524 [2023-12-25 07:17:56,497 INFO L226 Difference]: Without dead ends: 1273 [2023-12-25 07:17:56,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:17:56,499 INFO L413 NwaCegarLoop]: 312 mSDtfsCounter, 2 mSDsluCounter, 619 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 931 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:17:56,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 931 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:17:56,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1273 states. [2023-12-25 07:17:56,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1273 to 1269. [2023-12-25 07:17:56,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1269 states, 1174 states have (on average 1.2759795570698467) internal successors, (1498), 1177 states have internal predecessors, (1498), 53 states have call successors, (53), 41 states have call predecessors, (53), 41 states have return successors, (52), 51 states have call predecessors, (52), 51 states have call successors, (52) [2023-12-25 07:17:56,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1269 states to 1269 states and 1603 transitions. [2023-12-25 07:17:56,541 INFO L78 Accepts]: Start accepts. Automaton has 1269 states and 1603 transitions. Word has length 111 [2023-12-25 07:17:56,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:17:56,541 INFO L495 AbstractCegarLoop]: Abstraction has 1269 states and 1603 transitions. [2023-12-25 07:17:56,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2023-12-25 07:17:56,541 INFO L276 IsEmpty]: Start isEmpty. Operand 1269 states and 1603 transitions. [2023-12-25 07:17:56,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 07:17:56,542 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:17:56,542 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] [2023-12-25 07:17:56,545 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 [2023-12-25 07:17:56,745 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 [2023-12-25 07:17:56,745 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:17:56,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:17:56,746 INFO L85 PathProgramCache]: Analyzing trace with hash 628529072, now seen corresponding path program 1 times [2023-12-25 07:17:56,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:17:56,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1355073646] [2023-12-25 07:17:56,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:17:56,746 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 [2023-12-25 07:17:56,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:17:56,747 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) [2023-12-25 07:17:56,780 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 [2023-12-25 07:17:56,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:17:56,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:17:56,825 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:17:56,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:17:56,927 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:17:56,927 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:17:56,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1355073646] [2023-12-25 07:17:56,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1355073646] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:17:56,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:17:56,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:17:56,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377386346] [2023-12-25 07:17:56,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:17:56,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 07:17:56,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:17:56,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 07:17:56,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 07:17:56,928 INFO L87 Difference]: Start difference. First operand 1269 states and 1603 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-25 07:17:57,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:17:57,202 INFO L93 Difference]: Finished difference Result 2525 states and 3191 transitions. [2023-12-25 07:17:57,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-25 07:17:57,202 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2023-12-25 07:17:57,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:17:57,205 INFO L225 Difference]: With dead ends: 2525 [2023-12-25 07:17:57,205 INFO L226 Difference]: Without dead ends: 1269 [2023-12-25 07:17:57,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-25 07:17:57,207 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 375 mSDsluCounter, 320 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-25 07:17:57,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 520 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-25 07:17:57,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states. [2023-12-25 07:17:57,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 1269. [2023-12-25 07:17:57,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1269 states, 1174 states have (on average 1.2700170357751277) internal successors, (1491), 1177 states have internal predecessors, (1491), 53 states have call successors, (53), 41 states have call predecessors, (53), 41 states have return successors, (52), 51 states have call predecessors, (52), 51 states have call successors, (52) [2023-12-25 07:17:57,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1269 states to 1269 states and 1596 transitions. [2023-12-25 07:17:57,292 INFO L78 Accepts]: Start accepts. Automaton has 1269 states and 1596 transitions. Word has length 111 [2023-12-25 07:17:57,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:17:57,292 INFO L495 AbstractCegarLoop]: Abstraction has 1269 states and 1596 transitions. [2023-12-25 07:17:57,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-25 07:17:57,293 INFO L276 IsEmpty]: Start isEmpty. Operand 1269 states and 1596 transitions. [2023-12-25 07:17:57,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 07:17:57,294 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:17:57,294 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] [2023-12-25 07:17:57,307 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 [2023-12-25 07:17:57,497 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 [2023-12-25 07:17:57,497 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:17:57,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:17:57,498 INFO L85 PathProgramCache]: Analyzing trace with hash 556142514, now seen corresponding path program 1 times [2023-12-25 07:17:57,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:17:57,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [360417830] [2023-12-25 07:17:57,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:17:57,498 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 [2023-12-25 07:17:57,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:17:57,499 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) [2023-12-25 07:17:57,519 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 [2023-12-25 07:17:57,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:17:57,575 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-25 07:17:57,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:17:57,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:17:57,684 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:17:57,684 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:17:57,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [360417830] [2023-12-25 07:17:57,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [360417830] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:17:57,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:17:57,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:17:57,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766431363] [2023-12-25 07:17:57,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:17:57,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-25 07:17:57,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:17:57,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-25 07:17:57,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-25 07:17:57,685 INFO L87 Difference]: Start difference. First operand 1269 states and 1596 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-25 07:17:58,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:17:58,074 INFO L93 Difference]: Finished difference Result 2677 states and 3379 transitions. [2023-12-25 07:17:58,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-25 07:17:58,075 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 111 [2023-12-25 07:17:58,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:17:58,079 INFO L225 Difference]: With dead ends: 2677 [2023-12-25 07:17:58,079 INFO L226 Difference]: Without dead ends: 1421 [2023-12-25 07:17:58,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-25 07:17:58,081 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 464 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 07:17:58,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 515 Invalid, 538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 07:17:58,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1421 states. [2023-12-25 07:17:58,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1421 to 1341. [2023-12-25 07:17:58,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1341 states, 1244 states have (on average 1.2411575562700965) internal successors, (1544), 1247 states have internal predecessors, (1544), 53 states have call successors, (53), 43 states have call predecessors, (53), 43 states have return successors, (52), 51 states have call predecessors, (52), 51 states have call successors, (52) [2023-12-25 07:17:58,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1341 states to 1341 states and 1649 transitions. [2023-12-25 07:17:58,140 INFO L78 Accepts]: Start accepts. Automaton has 1341 states and 1649 transitions. Word has length 111 [2023-12-25 07:17:58,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:17:58,140 INFO L495 AbstractCegarLoop]: Abstraction has 1341 states and 1649 transitions. [2023-12-25 07:17:58,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-25 07:17:58,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1341 states and 1649 transitions. [2023-12-25 07:17:58,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-25 07:17:58,141 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:17:58,141 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] [2023-12-25 07:17:58,150 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 [2023-12-25 07:17:58,345 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 [2023-12-25 07:17:58,345 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:17:58,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:17:58,346 INFO L85 PathProgramCache]: Analyzing trace with hash 696691124, now seen corresponding path program 1 times [2023-12-25 07:17:58,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:17:58,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1123656158] [2023-12-25 07:17:58,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:17:58,346 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 [2023-12-25 07:17:58,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:17:58,347 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) [2023-12-25 07:17:58,349 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 [2023-12-25 07:17:58,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:17:58,423 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:17:58,425 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:17:58,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-25 07:17:58,522 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:17:58,522 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:17:58,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1123656158] [2023-12-25 07:17:58,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1123656158] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:17:58,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:17:58,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 07:17:58,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333391465] [2023-12-25 07:17:58,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:17:58,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:17:58,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:17:58,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:17:58,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:17:58,523 INFO L87 Difference]: Start difference. First operand 1341 states and 1649 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-25 07:17:58,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:17:58,661 INFO L93 Difference]: Finished difference Result 3952 states and 4874 transitions. [2023-12-25 07:17:58,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:17:58,661 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 111 [2023-12-25 07:17:58,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:17:58,668 INFO L225 Difference]: With dead ends: 3952 [2023-12-25 07:17:58,668 INFO L226 Difference]: Without dead ends: 2625 [2023-12-25 07:17:58,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:17:58,672 INFO L413 NwaCegarLoop]: 347 mSDtfsCounter, 205 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-25 07:17:58,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 622 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-25 07:17:58,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2625 states. [2023-12-25 07:17:58,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2625 to 2623. [2023-12-25 07:17:58,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2623 states, 2436 states have (on average 1.227832512315271) internal successors, (2991), 2442 states have internal predecessors, (2991), 100 states have call successors, (100), 85 states have call predecessors, (100), 86 states have return successors, (100), 96 states have call predecessors, (100), 98 states have call successors, (100) [2023-12-25 07:17:58,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2623 states to 2623 states and 3191 transitions. [2023-12-25 07:17:58,813 INFO L78 Accepts]: Start accepts. Automaton has 2623 states and 3191 transitions. Word has length 111 [2023-12-25 07:17:58,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:17:58,813 INFO L495 AbstractCegarLoop]: Abstraction has 2623 states and 3191 transitions. [2023-12-25 07:17:58,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2023-12-25 07:17:58,813 INFO L276 IsEmpty]: Start isEmpty. Operand 2623 states and 3191 transitions. [2023-12-25 07:17:58,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-12-25 07:17:58,815 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:17:58,816 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:17:58,836 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 [2023-12-25 07:17:59,019 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 [2023-12-25 07:17:59,019 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:17:59,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:17:59,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1385079609, now seen corresponding path program 1 times [2023-12-25 07:17:59,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:17:59,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [961614633] [2023-12-25 07:17:59,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:17:59,020 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 [2023-12-25 07:17:59,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:17:59,021 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) [2023-12-25 07:17:59,049 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 [2023-12-25 07:17:59,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:17:59,128 INFO L262 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 07:17:59,131 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:17:59,285 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-12-25 07:17:59,285 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:17:59,285 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:17:59,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [961614633] [2023-12-25 07:17:59,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [961614633] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:17:59,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:17:59,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:17:59,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641271767] [2023-12-25 07:17:59,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:17:59,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 07:17:59,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:17:59,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 07:17:59,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:17:59,286 INFO L87 Difference]: Start difference. First operand 2623 states and 3191 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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) [2023-12-25 07:17:59,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:17:59,741 INFO L93 Difference]: Finished difference Result 7739 states and 9403 transitions. [2023-12-25 07:17:59,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 07:17:59,742 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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 179 [2023-12-25 07:17:59,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:17:59,753 INFO L225 Difference]: With dead ends: 7739 [2023-12-25 07:17:59,753 INFO L226 Difference]: Without dead ends: 5131 [2023-12-25 07:17:59,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 07:17:59,756 INFO L413 NwaCegarLoop]: 375 mSDtfsCounter, 418 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 305 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 07:17:59,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 872 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 305 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 07:17:59,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5131 states. [2023-12-25 07:17:59,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5131 to 5127. [2023-12-25 07:17:59,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5127 states, 4765 states have (on average 1.2203567681007346) internal successors, (5815), 4780 states have internal predecessors, (5815), 189 states have call successors, (189), 161 states have call predecessors, (189), 172 states have return successors, (211), 187 states have call predecessors, (211), 187 states have call successors, (211) [2023-12-25 07:17:59,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5127 states to 5127 states and 6215 transitions. [2023-12-25 07:17:59,987 INFO L78 Accepts]: Start accepts. Automaton has 5127 states and 6215 transitions. Word has length 179 [2023-12-25 07:17:59,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:17:59,987 INFO L495 AbstractCegarLoop]: Abstraction has 5127 states and 6215 transitions. [2023-12-25 07:17:59,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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) [2023-12-25 07:17:59,987 INFO L276 IsEmpty]: Start isEmpty. Operand 5127 states and 6215 transitions. [2023-12-25 07:17:59,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2023-12-25 07:17:59,991 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:17:59,991 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:17:59,997 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2023-12-25 07:18:00,194 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 [2023-12-25 07:18:00,195 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:18:00,195 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:18:00,195 INFO L85 PathProgramCache]: Analyzing trace with hash -857685559, now seen corresponding path program 1 times [2023-12-25 07:18:00,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:18:00,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [922045562] [2023-12-25 07:18:00,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:18:00,196 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 [2023-12-25 07:18:00,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:18:00,197 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) [2023-12-25 07:18:00,197 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 [2023-12-25 07:18:00,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:18:00,300 INFO L262 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:18:00,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:18:00,312 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2023-12-25 07:18:00,312 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:18:00,312 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:18:00,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [922045562] [2023-12-25 07:18:00,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [922045562] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:18:00,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:18:00,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 07:18:00,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414209470] [2023-12-25 07:18:00,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:18:00,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:18:00,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:18:00,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:18:00,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:18:00,313 INFO L87 Difference]: Start difference. First operand 5127 states and 6215 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 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) [2023-12-25 07:18:00,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:18:00,553 INFO L93 Difference]: Finished difference Result 10229 states and 12386 transitions. [2023-12-25 07:18:00,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:18:00,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 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 179 [2023-12-25 07:18:00,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:18:00,565 INFO L225 Difference]: With dead ends: 10229 [2023-12-25 07:18:00,565 INFO L226 Difference]: Without dead ends: 5117 [2023-12-25 07:18:00,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:18:00,570 INFO L413 NwaCegarLoop]: 305 mSDtfsCounter, 328 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:18:00,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 305 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:18:00,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5117 states. [2023-12-25 07:18:00,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5117 to 5117. [2023-12-25 07:18:00,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5117 states, 4758 states have (on average 1.219419924337957) internal successors, (5802), 4772 states have internal predecessors, (5802), 186 states have call successors, (186), 161 states have call predecessors, (186), 172 states have return successors, (208), 184 states have call predecessors, (208), 184 states have call successors, (208) [2023-12-25 07:18:00,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5117 states to 5117 states and 6196 transitions. [2023-12-25 07:18:00,789 INFO L78 Accepts]: Start accepts. Automaton has 5117 states and 6196 transitions. Word has length 179 [2023-12-25 07:18:00,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:18:00,789 INFO L495 AbstractCegarLoop]: Abstraction has 5117 states and 6196 transitions. [2023-12-25 07:18:00,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 2 states have internal predecessors, (113), 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) [2023-12-25 07:18:00,790 INFO L276 IsEmpty]: Start isEmpty. Operand 5117 states and 6196 transitions. [2023-12-25 07:18:00,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2023-12-25 07:18:00,793 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:18:00,793 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:18:00,797 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 [2023-12-25 07:18:01,000 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 [2023-12-25 07:18:01,001 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:18:01,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:18:01,001 INFO L85 PathProgramCache]: Analyzing trace with hash -997799828, now seen corresponding path program 1 times [2023-12-25 07:18:01,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:18:01,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [555754721] [2023-12-25 07:18:01,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:18:01,002 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 [2023-12-25 07:18:01,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:18:01,005 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) [2023-12-25 07:18:01,006 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 [2023-12-25 07:18:01,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:18:01,142 INFO L262 TraceCheckSpWp]: Trace formula consists of 386 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 07:18:01,145 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:18:01,323 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-12-25 07:18:01,324 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:18:01,324 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:18:01,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [555754721] [2023-12-25 07:18:01,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [555754721] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:18:01,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:18:01,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:18:01,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151561528] [2023-12-25 07:18:01,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:18:01,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 07:18:01,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:18:01,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 07:18:01,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:18:01,325 INFO L87 Difference]: Start difference. First operand 5117 states and 6196 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 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) [2023-12-25 07:18:01,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:18:01,913 INFO L93 Difference]: Finished difference Result 14945 states and 18082 transitions. [2023-12-25 07:18:01,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 07:18:01,913 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 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 181 [2023-12-25 07:18:01,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:18:01,931 INFO L225 Difference]: With dead ends: 14945 [2023-12-25 07:18:01,931 INFO L226 Difference]: Without dead ends: 9843 [2023-12-25 07:18:01,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 07:18:01,937 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 427 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 07:18:01,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [433 Valid, 604 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 07:18:01,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9843 states. [2023-12-25 07:18:02,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9843 to 9839. [2023-12-25 07:18:02,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9839 states, 9152 states have (on average 1.2148164335664335) internal successors, (11118), 9182 states have internal predecessors, (11118), 350 states have call successors, (350), 305 states have call predecessors, (350), 336 states have return successors, (416), 352 states have call predecessors, (416), 348 states have call successors, (416) [2023-12-25 07:18:02,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9839 states to 9839 states and 11884 transitions. [2023-12-25 07:18:02,401 INFO L78 Accepts]: Start accepts. Automaton has 9839 states and 11884 transitions. Word has length 181 [2023-12-25 07:18:02,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:18:02,401 INFO L495 AbstractCegarLoop]: Abstraction has 9839 states and 11884 transitions. [2023-12-25 07:18:02,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 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) [2023-12-25 07:18:02,401 INFO L276 IsEmpty]: Start isEmpty. Operand 9839 states and 11884 transitions. [2023-12-25 07:18:02,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-12-25 07:18:02,407 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:18:02,408 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:18:02,412 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2023-12-25 07:18:02,611 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 [2023-12-25 07:18:02,612 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:18:02,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:18:02,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1812830905, now seen corresponding path program 1 times [2023-12-25 07:18:02,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:18:02,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [302168036] [2023-12-25 07:18:02,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:18:02,613 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 [2023-12-25 07:18:02,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:18:02,614 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) [2023-12-25 07:18:02,641 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 [2023-12-25 07:18:02,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:18:02,716 INFO L262 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 07:18:02,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:18:02,892 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-12-25 07:18:02,892 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:18:02,892 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:18:02,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [302168036] [2023-12-25 07:18:02,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [302168036] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:18:02,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:18:02,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:18:02,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537840184] [2023-12-25 07:18:02,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:18:02,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 07:18:02,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:18:02,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 07:18:02,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:18:02,894 INFO L87 Difference]: Start difference. First operand 9839 states and 11884 transitions. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 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) [2023-12-25 07:18:03,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:18:03,833 INFO L93 Difference]: Finished difference Result 28751 states and 34721 transitions. [2023-12-25 07:18:03,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 07:18:03,834 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 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 183 [2023-12-25 07:18:03,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:18:03,873 INFO L225 Difference]: With dead ends: 28751 [2023-12-25 07:18:03,874 INFO L226 Difference]: Without dead ends: 18927 [2023-12-25 07:18:03,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 07:18:03,887 INFO L413 NwaCegarLoop]: 345 mSDtfsCounter, 407 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 808 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 07:18:03,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 808 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 07:18:03,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18927 states. [2023-12-25 07:18:04,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18927 to 18923. [2023-12-25 07:18:04,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18923 states, 17601 states have (on average 1.2121470371001648) internal successors, (21335), 17668 states have internal predecessors, (21335), 665 states have call successors, (665), 577 states have call predecessors, (665), 656 states have return successors, (827), 679 states have call predecessors, (827), 663 states have call successors, (827) [2023-12-25 07:18:04,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18923 states to 18923 states and 22827 transitions. [2023-12-25 07:18:04,912 INFO L78 Accepts]: Start accepts. Automaton has 18923 states and 22827 transitions. Word has length 183 [2023-12-25 07:18:04,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:18:04,913 INFO L495 AbstractCegarLoop]: Abstraction has 18923 states and 22827 transitions. [2023-12-25 07:18:04,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 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) [2023-12-25 07:18:04,913 INFO L276 IsEmpty]: Start isEmpty. Operand 18923 states and 22827 transitions. [2023-12-25 07:18:04,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-12-25 07:18:04,922 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:18:04,922 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:18:04,928 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 [2023-12-25 07:18:05,125 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 [2023-12-25 07:18:05,126 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:18:05,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:18:05,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1793289783, now seen corresponding path program 1 times [2023-12-25 07:18:05,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:18:05,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1120326054] [2023-12-25 07:18:05,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:18:05,126 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 [2023-12-25 07:18:05,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:18:05,127 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) [2023-12-25 07:18:05,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2023-12-25 07:18:05,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:18:05,224 INFO L262 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:18:05,226 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:18:05,237 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2023-12-25 07:18:05,237 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:18:05,237 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:18:05,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1120326054] [2023-12-25 07:18:05,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1120326054] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:18:05,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:18:05,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 07:18:05,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476547946] [2023-12-25 07:18:05,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:18:05,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:18:05,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:18:05,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:18:05,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:18:05,238 INFO L87 Difference]: Start difference. First operand 18923 states and 22827 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 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) [2023-12-25 07:18:06,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:18:06,058 INFO L93 Difference]: Finished difference Result 37823 states and 45614 transitions. [2023-12-25 07:18:06,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:18:06,059 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 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 183 [2023-12-25 07:18:06,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:18:06,094 INFO L225 Difference]: With dead ends: 37823 [2023-12-25 07:18:06,094 INFO L226 Difference]: Without dead ends: 18915 [2023-12-25 07:18:06,109 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:18:06,110 INFO L413 NwaCegarLoop]: 304 mSDtfsCounter, 325 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:18:06,110 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 304 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:18:06,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18915 states. [2023-12-25 07:18:06,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18915 to 18915. [2023-12-25 07:18:06,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18915 states, 17596 states have (on average 1.2119231643555353) internal successors, (21325), 17662 states have internal predecessors, (21325), 662 states have call successors, (662), 577 states have call predecessors, (662), 656 states have return successors, (824), 676 states have call predecessors, (824), 660 states have call successors, (824) [2023-12-25 07:18:06,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18915 states to 18915 states and 22811 transitions. [2023-12-25 07:18:06,901 INFO L78 Accepts]: Start accepts. Automaton has 18915 states and 22811 transitions. Word has length 183 [2023-12-25 07:18:06,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:18:06,901 INFO L495 AbstractCegarLoop]: Abstraction has 18915 states and 22811 transitions. [2023-12-25 07:18:06,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 2 states have internal predecessors, (117), 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) [2023-12-25 07:18:06,901 INFO L276 IsEmpty]: Start isEmpty. Operand 18915 states and 22811 transitions. [2023-12-25 07:18:06,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-12-25 07:18:06,909 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:18:06,910 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:18:06,916 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 [2023-12-25 07:18:07,113 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 [2023-12-25 07:18:07,114 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:18:07,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:18:07,115 INFO L85 PathProgramCache]: Analyzing trace with hash -303953364, now seen corresponding path program 1 times [2023-12-25 07:18:07,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:18:07,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [953595161] [2023-12-25 07:18:07,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:18:07,115 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 [2023-12-25 07:18:07,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:18:07,116 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) [2023-12-25 07:18:07,152 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 [2023-12-25 07:18:07,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:18:07,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 07:18:07,228 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:18:07,396 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-12-25 07:18:07,396 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:18:07,396 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:18:07,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [953595161] [2023-12-25 07:18:07,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [953595161] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:18:07,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:18:07,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:18:07,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229914233] [2023-12-25 07:18:07,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:18:07,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 07:18:07,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:18:07,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 07:18:07,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:18:07,398 INFO L87 Difference]: Start difference. First operand 18915 states and 22811 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 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) [2023-12-25 07:18:09,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:18:09,292 INFO L93 Difference]: Finished difference Result 60918 states and 73199 transitions. [2023-12-25 07:18:09,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 07:18:09,292 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 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 185 [2023-12-25 07:18:09,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:18:09,367 INFO L225 Difference]: With dead ends: 60918 [2023-12-25 07:18:09,367 INFO L226 Difference]: Without dead ends: 42018 [2023-12-25 07:18:09,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 07:18:09,394 INFO L413 NwaCegarLoop]: 344 mSDtfsCounter, 411 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 07:18:09,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 795 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 07:18:09,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42018 states. [2023-12-25 07:18:11,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42018 to 41182. [2023-12-25 07:18:11,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41182 states, 38228 states have (on average 1.204666736423564) internal successors, (46052), 38599 states have internal predecessors, (46052), 1257 states have call successors, (1257), 1089 states have call predecessors, (1257), 1696 states have return successors, (2060), 1495 states have call predecessors, (2060), 1255 states have call successors, (2060) [2023-12-25 07:18:11,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41182 states to 41182 states and 49369 transitions. [2023-12-25 07:18:11,104 INFO L78 Accepts]: Start accepts. Automaton has 41182 states and 49369 transitions. Word has length 185 [2023-12-25 07:18:11,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:18:11,105 INFO L495 AbstractCegarLoop]: Abstraction has 41182 states and 49369 transitions. [2023-12-25 07:18:11,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 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) [2023-12-25 07:18:11,105 INFO L276 IsEmpty]: Start isEmpty. Operand 41182 states and 49369 transitions. [2023-12-25 07:18:11,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2023-12-25 07:18:11,122 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:18:11,122 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:18:11,136 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 [2023-12-25 07:18:11,325 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 [2023-12-25 07:18:11,326 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:18:11,326 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:18:11,326 INFO L85 PathProgramCache]: Analyzing trace with hash 301821418, now seen corresponding path program 1 times [2023-12-25 07:18:11,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:18:11,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1214580088] [2023-12-25 07:18:11,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:18:11,327 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 [2023-12-25 07:18:11,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:18:11,328 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) [2023-12-25 07:18:11,339 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 [2023-12-25 07:18:11,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:18:11,441 INFO L262 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:18:11,443 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:18:11,455 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2023-12-25 07:18:11,456 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:18:11,456 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:18:11,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1214580088] [2023-12-25 07:18:11,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1214580088] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:18:11,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:18:11,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 07:18:11,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662448295] [2023-12-25 07:18:11,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:18:11,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:18:11,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:18:11,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:18:11,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:18:11,457 INFO L87 Difference]: Start difference. First operand 41182 states and 49369 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 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) [2023-12-25 07:18:13,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:18:13,208 INFO L93 Difference]: Finished difference Result 82343 states and 98702 transitions. [2023-12-25 07:18:13,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:18:13,208 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 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 185 [2023-12-25 07:18:13,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:18:13,314 INFO L225 Difference]: With dead ends: 82343 [2023-12-25 07:18:13,314 INFO L226 Difference]: Without dead ends: 41175 [2023-12-25 07:18:13,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:18:13,356 INFO L413 NwaCegarLoop]: 303 mSDtfsCounter, 323 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:18:13,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 303 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:18:13,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41175 states. [2023-12-25 07:18:14,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41175 to 41175. [2023-12-25 07:18:15,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41175 states, 38224 states have (on average 1.2045835077438258) internal successors, (46044), 38594 states have internal predecessors, (46044), 1254 states have call successors, (1254), 1089 states have call predecessors, (1254), 1696 states have return successors, (2056), 1492 states have call predecessors, (2056), 1252 states have call successors, (2056) [2023-12-25 07:18:15,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41175 states to 41175 states and 49354 transitions. [2023-12-25 07:18:15,091 INFO L78 Accepts]: Start accepts. Automaton has 41175 states and 49354 transitions. Word has length 185 [2023-12-25 07:18:15,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:18:15,091 INFO L495 AbstractCegarLoop]: Abstraction has 41175 states and 49354 transitions. [2023-12-25 07:18:15,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 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) [2023-12-25 07:18:15,091 INFO L276 IsEmpty]: Start isEmpty. Operand 41175 states and 49354 transitions. [2023-12-25 07:18:15,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-12-25 07:18:15,108 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:18:15,108 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:18:15,114 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 [2023-12-25 07:18:15,312 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 [2023-12-25 07:18:15,312 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:18:15,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:18:15,312 INFO L85 PathProgramCache]: Analyzing trace with hash -348539449, now seen corresponding path program 1 times [2023-12-25 07:18:15,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:18:15,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [169694760] [2023-12-25 07:18:15,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:18:15,313 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 [2023-12-25 07:18:15,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:18:15,314 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) [2023-12-25 07:18:15,315 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 [2023-12-25 07:18:15,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:18:15,416 INFO L262 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 07:18:15,419 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:18:15,578 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-12-25 07:18:15,579 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:18:15,579 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:18:15,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [169694760] [2023-12-25 07:18:15,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [169694760] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:18:15,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:18:15,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:18:15,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258130363] [2023-12-25 07:18:15,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:18:15,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 07:18:15,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:18:15,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 07:18:15,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:18:15,580 INFO L87 Difference]: Start difference. First operand 41175 states and 49354 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 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) [2023-12-25 07:18:18,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:18:18,795 INFO L93 Difference]: Finished difference Result 119301 states and 142883 transitions. [2023-12-25 07:18:18,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 07:18:18,796 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 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 187 [2023-12-25 07:18:18,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:18:18,932 INFO L225 Difference]: With dead ends: 119301 [2023-12-25 07:18:18,932 INFO L226 Difference]: Without dead ends: 78141 [2023-12-25 07:18:18,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 07:18:18,978 INFO L413 NwaCegarLoop]: 317 mSDtfsCounter, 392 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 07:18:18,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 743 Invalid, 339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 07:18:19,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78141 states. [2023-12-25 07:18:22,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78141 to 78137. [2023-12-25 07:18:22,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78137 states, 72495 states have (on average 1.201420787640527) internal successors, (87097), 73234 states have internal predecessors, (87097), 2377 states have call successors, (2377), 2049 states have call predecessors, (2377), 3264 states have return successors, (3995), 2855 states have call predecessors, (3995), 2375 states have call successors, (3995) [2023-12-25 07:18:22,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78137 states to 78137 states and 93469 transitions. [2023-12-25 07:18:22,593 INFO L78 Accepts]: Start accepts. Automaton has 78137 states and 93469 transitions. Word has length 187 [2023-12-25 07:18:22,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:18:22,593 INFO L495 AbstractCegarLoop]: Abstraction has 78137 states and 93469 transitions. [2023-12-25 07:18:22,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 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) [2023-12-25 07:18:22,593 INFO L276 IsEmpty]: Start isEmpty. Operand 78137 states and 93469 transitions. [2023-12-25 07:18:22,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2023-12-25 07:18:22,620 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:18:22,620 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:18:22,626 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 [2023-12-25 07:18:22,824 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 [2023-12-25 07:18:22,825 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:18:22,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:18:22,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1250609609, now seen corresponding path program 1 times [2023-12-25 07:18:22,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:18:22,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [789910217] [2023-12-25 07:18:22,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:18:22,825 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 [2023-12-25 07:18:22,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:18:22,826 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) [2023-12-25 07:18:22,828 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 [2023-12-25 07:18:22,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:18:22,926 INFO L262 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:18:22,928 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:18:22,941 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2023-12-25 07:18:22,942 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:18:22,942 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:18:22,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [789910217] [2023-12-25 07:18:22,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [789910217] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:18:22,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:18:22,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 07:18:22,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396848599] [2023-12-25 07:18:22,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:18:22,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:18:22,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:18:22,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:18:22,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:18:22,943 INFO L87 Difference]: Start difference. First operand 78137 states and 93469 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 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) [2023-12-25 07:18:26,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:18:26,077 INFO L93 Difference]: Finished difference Result 156253 states and 186904 transitions. [2023-12-25 07:18:26,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:18:26,077 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 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 187 [2023-12-25 07:18:26,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:18:26,255 INFO L225 Difference]: With dead ends: 156253 [2023-12-25 07:18:26,256 INFO L226 Difference]: Without dead ends: 78131 [2023-12-25 07:18:26,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:18:26,314 INFO L413 NwaCegarLoop]: 302 mSDtfsCounter, 321 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:18:26,316 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 302 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:18:26,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78131 states. [2023-12-25 07:18:29,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78131 to 78131. [2023-12-25 07:18:29,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78131 states, 72492 states have (on average 1.2013877393367545) internal successors, (87091), 73230 states have internal predecessors, (87091), 2374 states have call successors, (2374), 2049 states have call predecessors, (2374), 3264 states have return successors, (3992), 2852 states have call predecessors, (3992), 2372 states have call successors, (3992) [2023-12-25 07:18:29,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78131 states to 78131 states and 93457 transitions. [2023-12-25 07:18:29,592 INFO L78 Accepts]: Start accepts. Automaton has 78131 states and 93457 transitions. Word has length 187 [2023-12-25 07:18:29,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:18:29,593 INFO L495 AbstractCegarLoop]: Abstraction has 78131 states and 93457 transitions. [2023-12-25 07:18:29,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 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) [2023-12-25 07:18:29,593 INFO L276 IsEmpty]: Start isEmpty. Operand 78131 states and 93457 transitions. [2023-12-25 07:18:29,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-12-25 07:18:29,617 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:18:29,617 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:18:29,629 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Ended with exit code 0 [2023-12-25 07:18:29,828 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 [2023-12-25 07:18:29,828 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:18:29,828 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:18:29,828 INFO L85 PathProgramCache]: Analyzing trace with hash -2133400596, now seen corresponding path program 1 times [2023-12-25 07:18:29,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:18:29,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1008232545] [2023-12-25 07:18:29,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:18:29,829 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 [2023-12-25 07:18:29,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:18:29,830 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) [2023-12-25 07:18:29,848 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 [2023-12-25 07:18:29,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:18:29,937 INFO L262 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-25 07:18:29,939 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:18:30,099 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-12-25 07:18:30,100 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:18:30,100 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:18:30,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1008232545] [2023-12-25 07:18:30,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1008232545] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:18:30,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:18:30,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-25 07:18:30,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137548499] [2023-12-25 07:18:30,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:18:30,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-25 07:18:30,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:18:30,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-25 07:18:30,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-25 07:18:30,101 INFO L87 Difference]: Start difference. First operand 78131 states and 93457 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-25 07:18:36,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:18:36,094 INFO L93 Difference]: Finished difference Result 225916 states and 269952 transitions. [2023-12-25 07:18:36,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-25 07:18:36,094 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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 189 [2023-12-25 07:18:36,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:18:36,466 INFO L225 Difference]: With dead ends: 225916 [2023-12-25 07:18:36,466 INFO L226 Difference]: Without dead ends: 147800 [2023-12-25 07:18:36,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-25 07:18:36,539 INFO L413 NwaCegarLoop]: 303 mSDtfsCounter, 386 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-25 07:18:36,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 711 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-25 07:18:36,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147800 states. [2023-12-25 07:18:42,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147800 to 147796. [2023-12-25 07:18:43,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147796 states, 136970 states have (on average 1.1979119515222312) internal successors, (164078), 138477 states have internal predecessors, (164078), 4489 states have call successors, (4489), 3841 states have call predecessors, (4489), 6336 states have return successors, (7803), 5479 states have call predecessors, (7803), 4487 states have call successors, (7803) [2023-12-25 07:18:43,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147796 states to 147796 states and 176370 transitions. [2023-12-25 07:18:43,475 INFO L78 Accepts]: Start accepts. Automaton has 147796 states and 176370 transitions. Word has length 189 [2023-12-25 07:18:43,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:18:43,476 INFO L495 AbstractCegarLoop]: Abstraction has 147796 states and 176370 transitions. [2023-12-25 07:18:43,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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) [2023-12-25 07:18:43,476 INFO L276 IsEmpty]: Start isEmpty. Operand 147796 states and 176370 transitions. [2023-12-25 07:18:43,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2023-12-25 07:18:43,525 INFO L187 NwaCegarLoop]: Found error trace [2023-12-25 07:18:43,525 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-25 07:18:43,530 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Ended with exit code 0 [2023-12-25 07:18:43,729 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 [2023-12-25 07:18:43,729 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-25 07:18:43,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-25 07:18:43,730 INFO L85 PathProgramCache]: Analyzing trace with hash 195579946, now seen corresponding path program 1 times [2023-12-25 07:18:43,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-25 07:18:43,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1137871041] [2023-12-25 07:18:43,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-25 07:18:43,730 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-25 07:18:43,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-25 07:18:43,731 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) [2023-12-25 07:18:43,758 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 [2023-12-25 07:18:43,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-25 07:18:43,829 INFO L262 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-25 07:18:43,831 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-25 07:18:43,844 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2023-12-25 07:18:43,845 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-25 07:18:43,845 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-25 07:18:43,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1137871041] [2023-12-25 07:18:43,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1137871041] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-25 07:18:43,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-25 07:18:43,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-25 07:18:43,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865820208] [2023-12-25 07:18:43,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-25 07:18:43,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-25 07:18:43,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-25 07:18:43,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-25 07:18:43,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:18:43,846 INFO L87 Difference]: Start difference. First operand 147796 states and 176370 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 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) [2023-12-25 07:18:50,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-25 07:18:50,031 INFO L93 Difference]: Finished difference Result 295572 states and 352709 transitions. [2023-12-25 07:18:50,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-25 07:18:50,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 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 189 [2023-12-25 07:18:50,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-25 07:18:50,406 INFO L225 Difference]: With dead ends: 295572 [2023-12-25 07:18:50,406 INFO L226 Difference]: Without dead ends: 147791 [2023-12-25 07:18:50,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-25 07:18:50,674 INFO L413 NwaCegarLoop]: 301 mSDtfsCounter, 319 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-25 07:18:50,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 301 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-25 07:18:50,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147791 states. [2023-12-25 07:18:57,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147791 to 147791. [2023-12-25 07:18:57,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147791 states, 136968 states have (on average 1.1979002394719935) internal successors, (164074), 138474 states have internal predecessors, (164074), 4486 states have call successors, (4486), 3841 states have call predecessors, (4486), 6336 states have return successors, (7800), 5476 states have call predecessors, (7800), 4484 states have call successors, (7800) [2023-12-25 07:18:57,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147791 states to 147791 states and 176360 transitions. [2023-12-25 07:18:57,652 INFO L78 Accepts]: Start accepts. Automaton has 147791 states and 176360 transitions. Word has length 189 [2023-12-25 07:18:57,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-25 07:18:57,652 INFO L495 AbstractCegarLoop]: Abstraction has 147791 states and 176360 transitions. [2023-12-25 07:18:57,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 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) [2023-12-25 07:18:57,653 INFO L276 IsEmpty]: Start isEmpty. Operand 147791 states and 176360 transitions.