/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.05.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 17:53:13,335 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 17:53:13,400 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 17:53:13,403 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 17:53:13,404 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 17:53:13,424 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 17:53:13,425 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 17:53:13,425 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 17:53:13,425 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 17:53:13,428 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 17:53:13,428 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 17:53:13,429 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 17:53:13,429 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 17:53:13,430 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 17:53:13,430 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 17:53:13,431 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 17:53:13,431 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 17:53:13,431 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 17:53:13,431 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 17:53:13,431 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 17:53:13,431 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 17:53:13,432 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 17:53:13,432 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 17:53:13,432 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 17:53:13,432 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 17:53:13,432 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 17:53:13,432 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 17:53:13,432 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 17:53:13,433 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 17:53:13,433 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 17:53:13,433 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 17:53:13,433 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 17:53:13,434 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 17:53:13,434 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 17:53:13,434 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:53:13,434 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 17:53:13,434 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 17:53:13,434 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 17:53:13,434 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 17:53:13,434 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 17:53:13,434 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 17:53:13,435 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 17:53:13,435 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 17:53:13,435 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 17:53:13,435 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 17:53:13,435 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 17:53:13,435 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 17:53:13,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 17:53:13,630 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 17:53:13,632 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 17:53:13,632 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 17:53:13,635 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 17:53:13,636 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/systemc/token_ring.05.cil-2.c [2023-12-16 17:53:14,542 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 17:53:14,717 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 17:53:14,718 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/systemc/token_ring.05.cil-2.c [2023-12-16 17:53:14,725 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ca00c1d1/9dabec83ba33478981a11f12676627a1/FLAG683c8d031 [2023-12-16 17:53:14,734 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0ca00c1d1/9dabec83ba33478981a11f12676627a1 [2023-12-16 17:53:14,736 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 17:53:14,738 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 17:53:14,739 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 17:53:14,739 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 17:53:14,743 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 17:53:14,743 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:53:14" (1/1) ... [2023-12-16 17:53:14,744 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@716fa795 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:53:14, skipping insertion in model container [2023-12-16 17:53:14,744 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 05:53:14" (1/1) ... [2023-12-16 17:53:14,785 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 17:53:14,893 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.05.cil-2.c[671,684] [2023-12-16 17:53:14,938 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:53:14,947 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 17:53:14,954 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.05.cil-2.c[671,684] [2023-12-16 17:53:14,998 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 17:53:15,016 INFO L206 MainTranslator]: Completed translation [2023-12-16 17:53:15,017 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:53:15 WrapperNode [2023-12-16 17:53:15,017 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 17:53:15,018 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 17:53:15,018 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 17:53:15,018 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 17:53:15,022 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:53:15" (1/1) ... [2023-12-16 17:53:15,032 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:53:15" (1/1) ... [2023-12-16 17:53:15,049 INFO L138 Inliner]: procedures = 38, calls = 47, calls flagged for inlining = 21, calls inlined = 21, statements flattened = 447 [2023-12-16 17:53:15,050 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 17:53:15,050 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 17:53:15,050 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 17:53:15,050 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 17:53:15,057 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:53:15" (1/1) ... [2023-12-16 17:53:15,057 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:53:15" (1/1) ... [2023-12-16 17:53:15,060 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:53:15" (1/1) ... [2023-12-16 17:53:15,069 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 17:53:15,069 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:53:15" (1/1) ... [2023-12-16 17:53:15,069 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:53:15" (1/1) ... [2023-12-16 17:53:15,074 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:53:15" (1/1) ... [2023-12-16 17:53:15,078 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:53:15" (1/1) ... [2023-12-16 17:53:15,080 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:53:15" (1/1) ... [2023-12-16 17:53:15,081 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:53:15" (1/1) ... [2023-12-16 17:53:15,084 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 17:53:15,085 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 17:53:15,085 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 17:53:15,085 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 17:53:15,085 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:53:15" (1/1) ... [2023-12-16 17:53:15,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 17:53:15,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 17:53:15,109 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 17:53:15,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 17:53:15,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 17:53:15,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 17:53:15,139 INFO L130 BoogieDeclarations]: Found specification of procedure error [2023-12-16 17:53:15,139 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2023-12-16 17:53:15,139 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-12-16 17:53:15,139 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-12-16 17:53:15,139 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-12-16 17:53:15,139 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-12-16 17:53:15,139 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-16 17:53:15,140 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-16 17:53:15,140 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-12-16 17:53:15,140 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-12-16 17:53:15,140 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-12-16 17:53:15,140 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-12-16 17:53:15,140 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-12-16 17:53:15,140 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-12-16 17:53:15,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 17:53:15,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 17:53:15,203 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 17:53:15,204 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 17:53:15,603 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 17:53:15,648 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 17:53:15,648 INFO L309 CfgBuilder]: Removed 8 assume(true) statements. [2023-12-16 17:53:15,649 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:53:15 BoogieIcfgContainer [2023-12-16 17:53:15,649 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 17:53:15,651 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 17:53:15,652 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 17:53:15,654 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 17:53:15,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 05:53:14" (1/3) ... [2023-12-16 17:53:15,655 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@643f58bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:53:15, skipping insertion in model container [2023-12-16 17:53:15,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 05:53:15" (2/3) ... [2023-12-16 17:53:15,655 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@643f58bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 05:53:15, skipping insertion in model container [2023-12-16 17:53:15,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 05:53:15" (3/3) ... [2023-12-16 17:53:15,656 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.05.cil-2.c [2023-12-16 17:53:15,667 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 17:53:15,667 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 17:53:15,711 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 17:53:15,715 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;@34db7597, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 17:53:15,716 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 17:53:15,720 INFO L276 IsEmpty]: Start isEmpty. Operand has 195 states, 165 states have (on average 1.709090909090909) internal successors, (282), 169 states have internal predecessors, (282), 21 states have call successors, (21), 7 states have call predecessors, (21), 7 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2023-12-16 17:53:15,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 17:53:15,731 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:15,732 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] [2023-12-16 17:53:15,732 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:15,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:15,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1900971462, now seen corresponding path program 1 times [2023-12-16 17:53:15,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:15,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1375116656] [2023-12-16 17:53:15,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:15,746 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 [2023-12-16 17:53:15,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:15,748 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:53:15,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 17:53:15,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:15,873 INFO L262 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:53:15,882 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:15,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:53:15,979 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:15,980 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:15,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1375116656] [2023-12-16 17:53:15,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1375116656] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:15,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:15,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:53:15,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042051093] [2023-12-16 17:53:15,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:15,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:53:15,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:16,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:53:16,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:53:16,013 INFO L87 Difference]: Start difference. First operand has 195 states, 165 states have (on average 1.709090909090909) internal successors, (282), 169 states have internal predecessors, (282), 21 states have call successors, (21), 7 states have call predecessors, (21), 7 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:16,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:16,465 INFO L93 Difference]: Finished difference Result 582 states and 977 transitions. [2023-12-16 17:53:16,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 17:53:16,468 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 3 states have internal predecessors, (80), 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 91 [2023-12-16 17:53:16,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:16,485 INFO L225 Difference]: With dead ends: 582 [2023-12-16 17:53:16,485 INFO L226 Difference]: Without dead ends: 394 [2023-12-16 17:53:16,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:53:16,494 INFO L413 NwaCegarLoop]: 224 mSDtfsCounter, 543 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 556 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:16,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [556 Valid, 777 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 17:53:16,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2023-12-16 17:53:16,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 377. [2023-12-16 17:53:16,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 328 states have (on average 1.6097560975609757) internal successors, (528), 331 states have internal predecessors, (528), 35 states have call successors, (35), 13 states have call predecessors, (35), 13 states have return successors, (34), 33 states have call predecessors, (34), 33 states have call successors, (34) [2023-12-16 17:53:16,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 597 transitions. [2023-12-16 17:53:16,544 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 597 transitions. Word has length 91 [2023-12-16 17:53:16,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:16,544 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 597 transitions. [2023-12-16 17:53:16,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:16,545 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 597 transitions. [2023-12-16 17:53:16,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 17:53:16,548 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:16,548 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] [2023-12-16 17:53:16,554 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 17:53:16,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:16,751 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:16,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:16,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1532329918, now seen corresponding path program 1 times [2023-12-16 17:53:16,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:16,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [484593227] [2023-12-16 17:53:16,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:16,753 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:16,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:16,754 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:53:16,768 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 17:53:16,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:16,831 INFO L262 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:53:16,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:16,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:53:16,890 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:16,891 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:16,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [484593227] [2023-12-16 17:53:16,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [484593227] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:16,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:16,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:53:16,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89235391] [2023-12-16 17:53:16,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:16,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:53:16,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:16,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:53:16,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:53:16,898 INFO L87 Difference]: Start difference. First operand 377 states and 597 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:17,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:17,146 INFO L93 Difference]: Finished difference Result 743 states and 1182 transitions. [2023-12-16 17:53:17,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:53:17,146 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 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 91 [2023-12-16 17:53:17,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:17,148 INFO L225 Difference]: With dead ends: 743 [2023-12-16 17:53:17,148 INFO L226 Difference]: Without dead ends: 377 [2023-12-16 17:53:17,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:53:17,149 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 388 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:17,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 484 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:53:17,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2023-12-16 17:53:17,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 377. [2023-12-16 17:53:17,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 328 states have (on average 1.5884146341463414) internal successors, (521), 331 states have internal predecessors, (521), 35 states have call successors, (35), 13 states have call predecessors, (35), 13 states have return successors, (34), 33 states have call predecessors, (34), 33 states have call successors, (34) [2023-12-16 17:53:17,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 590 transitions. [2023-12-16 17:53:17,168 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 590 transitions. Word has length 91 [2023-12-16 17:53:17,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:17,168 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 590 transitions. [2023-12-16 17:53:17,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:17,169 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 590 transitions. [2023-12-16 17:53:17,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 17:53:17,170 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:17,171 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] [2023-12-16 17:53:17,176 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-16 17:53:17,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:17,374 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:17,375 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:17,375 INFO L85 PathProgramCache]: Analyzing trace with hash -119060922, now seen corresponding path program 1 times [2023-12-16 17:53:17,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:17,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1687044834] [2023-12-16 17:53:17,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:17,375 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:17,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:17,376 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:53:17,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-16 17:53:17,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:17,447 INFO L262 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:53:17,449 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:17,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:53:17,503 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:17,503 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:17,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1687044834] [2023-12-16 17:53:17,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1687044834] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:17,506 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:17,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:53:17,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172705727] [2023-12-16 17:53:17,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:17,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:53:17,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:17,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:53:17,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:53:17,508 INFO L87 Difference]: Start difference. First operand 377 states and 590 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:17,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:17,744 INFO L93 Difference]: Finished difference Result 743 states and 1168 transitions. [2023-12-16 17:53:17,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:53:17,744 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 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 91 [2023-12-16 17:53:17,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:17,746 INFO L225 Difference]: With dead ends: 743 [2023-12-16 17:53:17,746 INFO L226 Difference]: Without dead ends: 377 [2023-12-16 17:53:17,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:53:17,748 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 382 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:17,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 477 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:53:17,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2023-12-16 17:53:17,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 377. [2023-12-16 17:53:17,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 328 states have (on average 1.5670731707317074) internal successors, (514), 331 states have internal predecessors, (514), 35 states have call successors, (35), 13 states have call predecessors, (35), 13 states have return successors, (34), 33 states have call predecessors, (34), 33 states have call successors, (34) [2023-12-16 17:53:17,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 583 transitions. [2023-12-16 17:53:17,767 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 583 transitions. Word has length 91 [2023-12-16 17:53:17,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:17,767 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 583 transitions. [2023-12-16 17:53:17,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:17,767 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 583 transitions. [2023-12-16 17:53:17,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 17:53:17,769 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:17,769 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] [2023-12-16 17:53:17,775 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-16 17:53:17,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:17,973 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:17,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:17,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1589096386, now seen corresponding path program 1 times [2023-12-16 17:53:17,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:17,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1804898016] [2023-12-16 17:53:17,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:17,974 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:17,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:17,975 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:53:17,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-16 17:53:18,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:18,045 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:53:18,047 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:18,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:53:18,090 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:18,090 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:18,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1804898016] [2023-12-16 17:53:18,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1804898016] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:18,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:18,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:53:18,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591496090] [2023-12-16 17:53:18,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:18,091 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:53:18,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:18,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:53:18,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:53:18,091 INFO L87 Difference]: Start difference. First operand 377 states and 583 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:18,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:18,311 INFO L93 Difference]: Finished difference Result 743 states and 1154 transitions. [2023-12-16 17:53:18,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:53:18,312 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 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 91 [2023-12-16 17:53:18,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:18,314 INFO L225 Difference]: With dead ends: 743 [2023-12-16 17:53:18,314 INFO L226 Difference]: Without dead ends: 377 [2023-12-16 17:53:18,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:53:18,315 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 376 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 389 SdHoareTripleChecker+Valid, 470 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:18,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [389 Valid, 470 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:53:18,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2023-12-16 17:53:18,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 377. [2023-12-16 17:53:18,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 328 states have (on average 1.545731707317073) internal successors, (507), 331 states have internal predecessors, (507), 35 states have call successors, (35), 13 states have call predecessors, (35), 13 states have return successors, (34), 33 states have call predecessors, (34), 33 states have call successors, (34) [2023-12-16 17:53:18,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 576 transitions. [2023-12-16 17:53:18,335 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 576 transitions. Word has length 91 [2023-12-16 17:53:18,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:18,335 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 576 transitions. [2023-12-16 17:53:18,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:18,335 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 576 transitions. [2023-12-16 17:53:18,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 17:53:18,336 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:18,336 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] [2023-12-16 17:53:18,342 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-12-16 17:53:18,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:18,539 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:18,540 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:18,540 INFO L85 PathProgramCache]: Analyzing trace with hash 951461574, now seen corresponding path program 1 times [2023-12-16 17:53:18,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:18,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1603712345] [2023-12-16 17:53:18,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:18,541 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:18,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:18,542 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:53:18,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 17:53:18,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:18,623 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:53:18,625 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:18,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:53:18,666 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:18,666 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:18,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1603712345] [2023-12-16 17:53:18,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1603712345] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:18,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:18,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:53:18,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064510433] [2023-12-16 17:53:18,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:18,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:53:18,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:18,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:53:18,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:53:18,668 INFO L87 Difference]: Start difference. First operand 377 states and 576 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:18,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:18,890 INFO L93 Difference]: Finished difference Result 743 states and 1140 transitions. [2023-12-16 17:53:18,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:53:18,891 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 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 91 [2023-12-16 17:53:18,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:18,893 INFO L225 Difference]: With dead ends: 743 [2023-12-16 17:53:18,893 INFO L226 Difference]: Without dead ends: 377 [2023-12-16 17:53:18,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:53:18,894 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 370 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:18,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 463 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:53:18,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2023-12-16 17:53:18,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 377. [2023-12-16 17:53:18,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 328 states have (on average 1.524390243902439) internal successors, (500), 331 states have internal predecessors, (500), 35 states have call successors, (35), 13 states have call predecessors, (35), 13 states have return successors, (34), 33 states have call predecessors, (34), 33 states have call successors, (34) [2023-12-16 17:53:18,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 569 transitions. [2023-12-16 17:53:18,911 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 569 transitions. Word has length 91 [2023-12-16 17:53:18,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:18,912 INFO L495 AbstractCegarLoop]: Abstraction has 377 states and 569 transitions. [2023-12-16 17:53:18,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:18,912 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 569 transitions. [2023-12-16 17:53:18,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 17:53:18,913 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:18,913 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] [2023-12-16 17:53:18,916 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 (6)] Forceful destruction successful, exit code 0 [2023-12-16 17:53:19,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:19,116 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:19,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:19,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1900724034, now seen corresponding path program 1 times [2023-12-16 17:53:19,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:19,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [812307333] [2023-12-16 17:53:19,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:19,117 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:19,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:19,119 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:53:19,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-12-16 17:53:19,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:19,184 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:53:19,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:19,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:53:19,219 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:19,219 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:19,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [812307333] [2023-12-16 17:53:19,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [812307333] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:19,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:19,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:53:19,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658191319] [2023-12-16 17:53:19,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:19,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:53:19,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:19,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:53:19,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:53:19,221 INFO L87 Difference]: Start difference. First operand 377 states and 569 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:19,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:19,502 INFO L93 Difference]: Finished difference Result 825 states and 1258 transitions. [2023-12-16 17:53:19,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:53:19,503 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 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 91 [2023-12-16 17:53:19,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:19,506 INFO L225 Difference]: With dead ends: 825 [2023-12-16 17:53:19,506 INFO L226 Difference]: Without dead ends: 459 [2023-12-16 17:53:19,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:53:19,508 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 414 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:19,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 457 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:53:19,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2023-12-16 17:53:19,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 459. [2023-12-16 17:53:19,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 404 states have (on average 1.4925742574257426) internal successors, (603), 407 states have internal predecessors, (603), 37 states have call successors, (37), 17 states have call predecessors, (37), 17 states have return successors, (36), 35 states have call predecessors, (36), 35 states have call successors, (36) [2023-12-16 17:53:19,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 676 transitions. [2023-12-16 17:53:19,531 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 676 transitions. Word has length 91 [2023-12-16 17:53:19,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:19,531 INFO L495 AbstractCegarLoop]: Abstraction has 459 states and 676 transitions. [2023-12-16 17:53:19,531 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:19,531 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 676 transitions. [2023-12-16 17:53:19,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 17:53:19,532 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:19,532 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] [2023-12-16 17:53:19,537 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-16 17:53:19,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:19,735 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:19,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:19,736 INFO L85 PathProgramCache]: Analyzing trace with hash -497616545, now seen corresponding path program 1 times [2023-12-16 17:53:19,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:19,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [429552038] [2023-12-16 17:53:19,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:19,737 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:19,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:19,738 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:53:19,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-16 17:53:19,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:19,801 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:53:19,802 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:19,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:53:19,834 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:19,834 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:19,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [429552038] [2023-12-16 17:53:19,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [429552038] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:19,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:19,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:53:19,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146529907] [2023-12-16 17:53:19,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:19,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:53:19,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:19,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:53:19,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:53:19,836 INFO L87 Difference]: Start difference. First operand 459 states and 676 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:20,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:20,092 INFO L93 Difference]: Finished difference Result 989 states and 1472 transitions. [2023-12-16 17:53:20,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:53:20,093 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 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 91 [2023-12-16 17:53:20,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:20,095 INFO L225 Difference]: With dead ends: 989 [2023-12-16 17:53:20,095 INFO L226 Difference]: Without dead ends: 541 [2023-12-16 17:53:20,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:53:20,097 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 407 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:20,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [420 Valid, 450 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:53:20,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2023-12-16 17:53:20,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 541. [2023-12-16 17:53:20,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 480 states have (on average 1.4625) internal successors, (702), 483 states have internal predecessors, (702), 39 states have call successors, (39), 21 states have call predecessors, (39), 21 states have return successors, (38), 37 states have call predecessors, (38), 37 states have call successors, (38) [2023-12-16 17:53:20,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 779 transitions. [2023-12-16 17:53:20,153 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 779 transitions. Word has length 91 [2023-12-16 17:53:20,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:20,155 INFO L495 AbstractCegarLoop]: Abstraction has 541 states and 779 transitions. [2023-12-16 17:53:20,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:20,156 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 779 transitions. [2023-12-16 17:53:20,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 17:53:20,156 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:20,156 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] [2023-12-16 17:53:20,160 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-12-16 17:53:20,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:20,362 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:20,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:20,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1024561763, now seen corresponding path program 1 times [2023-12-16 17:53:20,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:20,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [502564357] [2023-12-16 17:53:20,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:20,363 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:20,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:20,364 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:53:20,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 17:53:20,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:20,435 INFO L262 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:53:20,438 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:20,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:53:20,476 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:20,476 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:20,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [502564357] [2023-12-16 17:53:20,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [502564357] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:20,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:20,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:53:20,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15671396] [2023-12-16 17:53:20,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:20,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:53:20,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:20,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:53:20,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:53:20,477 INFO L87 Difference]: Start difference. First operand 541 states and 779 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:20,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:20,744 INFO L93 Difference]: Finished difference Result 1153 states and 1678 transitions. [2023-12-16 17:53:20,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:53:20,745 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 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 91 [2023-12-16 17:53:20,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:20,747 INFO L225 Difference]: With dead ends: 1153 [2023-12-16 17:53:20,747 INFO L226 Difference]: Without dead ends: 623 [2023-12-16 17:53:20,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:53:20,749 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 401 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:20,749 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [414 Valid, 443 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:53:20,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2023-12-16 17:53:20,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 623. [2023-12-16 17:53:20,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 623 states, 556 states have (on average 1.433453237410072) internal successors, (797), 559 states have internal predecessors, (797), 41 states have call successors, (41), 25 states have call predecessors, (41), 25 states have return successors, (40), 39 states have call predecessors, (40), 39 states have call successors, (40) [2023-12-16 17:53:20,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 623 states to 623 states and 878 transitions. [2023-12-16 17:53:20,774 INFO L78 Accepts]: Start accepts. Automaton has 623 states and 878 transitions. Word has length 91 [2023-12-16 17:53:20,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:20,774 INFO L495 AbstractCegarLoop]: Abstraction has 623 states and 878 transitions. [2023-12-16 17:53:20,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:20,774 INFO L276 IsEmpty]: Start isEmpty. Operand 623 states and 878 transitions. [2023-12-16 17:53:20,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 17:53:20,775 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:20,775 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:53:20,780 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-16 17:53:20,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:20,978 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:20,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:20,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1844661250, now seen corresponding path program 1 times [2023-12-16 17:53:20,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:20,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1961876118] [2023-12-16 17:53:20,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:20,980 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:20,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:20,981 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:53:21,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-12-16 17:53:21,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:21,046 INFO L262 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:53:21,048 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:21,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:53:21,082 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:21,082 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:21,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1961876118] [2023-12-16 17:53:21,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1961876118] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:21,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:21,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:53:21,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478090324] [2023-12-16 17:53:21,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:21,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:53:21,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:21,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:53:21,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:53:21,083 INFO L87 Difference]: Start difference. First operand 623 states and 878 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:21,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:21,359 INFO L93 Difference]: Finished difference Result 1317 states and 1876 transitions. [2023-12-16 17:53:21,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:53:21,360 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 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 91 [2023-12-16 17:53:21,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:21,362 INFO L225 Difference]: With dead ends: 1317 [2023-12-16 17:53:21,362 INFO L226 Difference]: Without dead ends: 705 [2023-12-16 17:53:21,363 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:53:21,364 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 394 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:21,364 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 436 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:53:21,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 705 states. [2023-12-16 17:53:21,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 705 to 705. [2023-12-16 17:53:21,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 705 states, 632 states have (on average 1.4050632911392404) internal successors, (888), 635 states have internal predecessors, (888), 43 states have call successors, (43), 29 states have call predecessors, (43), 29 states have return successors, (42), 41 states have call predecessors, (42), 41 states have call successors, (42) [2023-12-16 17:53:21,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 705 states to 705 states and 973 transitions. [2023-12-16 17:53:21,410 INFO L78 Accepts]: Start accepts. Automaton has 705 states and 973 transitions. Word has length 91 [2023-12-16 17:53:21,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:21,410 INFO L495 AbstractCegarLoop]: Abstraction has 705 states and 973 transitions. [2023-12-16 17:53:21,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:21,410 INFO L276 IsEmpty]: Start isEmpty. Operand 705 states and 973 transitions. [2023-12-16 17:53:21,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 17:53:21,411 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:21,411 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] [2023-12-16 17:53:21,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-12-16 17:53:21,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:21,615 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:21,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:21,615 INFO L85 PathProgramCache]: Analyzing trace with hash 486939523, now seen corresponding path program 1 times [2023-12-16 17:53:21,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:21,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [310165157] [2023-12-16 17:53:21,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:21,616 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:21,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:21,617 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:53:21,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-16 17:53:21,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:21,684 INFO L262 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:53:21,686 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:21,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:53:21,733 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:21,733 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:21,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [310165157] [2023-12-16 17:53:21,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [310165157] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:21,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:21,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:53:21,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698456331] [2023-12-16 17:53:21,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:21,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:53:21,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:21,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:53:21,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:53:21,735 INFO L87 Difference]: Start difference. First operand 705 states and 973 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:21,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:21,986 INFO L93 Difference]: Finished difference Result 1481 states and 2066 transitions. [2023-12-16 17:53:21,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:53:21,987 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 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 91 [2023-12-16 17:53:21,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:21,990 INFO L225 Difference]: With dead ends: 1481 [2023-12-16 17:53:21,990 INFO L226 Difference]: Without dead ends: 787 [2023-12-16 17:53:21,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:53:21,991 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 387 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:21,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 429 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:53:21,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2023-12-16 17:53:22,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 787. [2023-12-16 17:53:22,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 708 states have (on average 1.3771186440677967) internal successors, (975), 711 states have internal predecessors, (975), 45 states have call successors, (45), 33 states have call predecessors, (45), 33 states have return successors, (44), 43 states have call predecessors, (44), 43 states have call successors, (44) [2023-12-16 17:53:22,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1064 transitions. [2023-12-16 17:53:22,021 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1064 transitions. Word has length 91 [2023-12-16 17:53:22,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:22,021 INFO L495 AbstractCegarLoop]: Abstraction has 787 states and 1064 transitions. [2023-12-16 17:53:22,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:22,021 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1064 transitions. [2023-12-16 17:53:22,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 17:53:22,022 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:22,022 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] [2023-12-16 17:53:22,030 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-12-16 17:53:22,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:22,225 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:22,226 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:22,226 INFO L85 PathProgramCache]: Analyzing trace with hash 623231231, now seen corresponding path program 1 times [2023-12-16 17:53:22,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:22,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1918567917] [2023-12-16 17:53:22,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:22,226 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:22,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:22,227 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:53:22,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-12-16 17:53:22,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:22,290 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:53:22,292 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:22,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:53:22,322 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:22,322 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:22,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1918567917] [2023-12-16 17:53:22,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1918567917] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:22,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:22,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:53:22,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714055775] [2023-12-16 17:53:22,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:22,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:53:22,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:22,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:53:22,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:53:22,323 INFO L87 Difference]: Start difference. First operand 787 states and 1064 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:22,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:22,601 INFO L93 Difference]: Finished difference Result 1639 states and 2240 transitions. [2023-12-16 17:53:22,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:53:22,602 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 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 91 [2023-12-16 17:53:22,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:22,605 INFO L225 Difference]: With dead ends: 1639 [2023-12-16 17:53:22,605 INFO L226 Difference]: Without dead ends: 863 [2023-12-16 17:53:22,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:53:22,607 INFO L413 NwaCegarLoop]: 164 mSDtfsCounter, 380 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 329 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:22,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 422 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 329 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:53:22,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2023-12-16 17:53:22,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 863. [2023-12-16 17:53:22,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 782 states have (on average 1.350383631713555) internal successors, (1056), 785 states have internal predecessors, (1056), 45 states have call successors, (45), 35 states have call predecessors, (45), 35 states have return successors, (44), 43 states have call predecessors, (44), 43 states have call successors, (44) [2023-12-16 17:53:22,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1145 transitions. [2023-12-16 17:53:22,662 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1145 transitions. Word has length 91 [2023-12-16 17:53:22,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:22,662 INFO L495 AbstractCegarLoop]: Abstraction has 863 states and 1145 transitions. [2023-12-16 17:53:22,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:22,662 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1145 transitions. [2023-12-16 17:53:22,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 17:53:22,662 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:22,663 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] [2023-12-16 17:53:22,670 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-12-16 17:53:22,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:22,866 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:22,866 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:22,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1156606268, now seen corresponding path program 1 times [2023-12-16 17:53:22,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:22,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1828884788] [2023-12-16 17:53:22,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:22,867 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:22,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:22,868 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:53:22,879 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 (13)] Waiting until timeout for monitored process [2023-12-16 17:53:22,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:22,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:53:22,932 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:22,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:53:22,942 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:22,942 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:22,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1828884788] [2023-12-16 17:53:22,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1828884788] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:22,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:22,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:53:22,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772642207] [2023-12-16 17:53:22,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:22,943 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:53:22,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:22,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:53:22,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:53:22,944 INFO L87 Difference]: Start difference. First operand 863 states and 1145 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:23,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:23,007 INFO L93 Difference]: Finished difference Result 1782 states and 2387 transitions. [2023-12-16 17:53:23,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:53:23,007 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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 91 [2023-12-16 17:53:23,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:23,010 INFO L225 Difference]: With dead ends: 1782 [2023-12-16 17:53:23,010 INFO L226 Difference]: Without dead ends: 931 [2023-12-16 17:53:23,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:53:23,012 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 47 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:23,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 740 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:53:23,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2023-12-16 17:53:23,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 867. [2023-12-16 17:53:23,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 867 states, 786 states have (on average 1.3333333333333333) internal successors, (1048), 789 states have internal predecessors, (1048), 45 states have call successors, (45), 35 states have call predecessors, (45), 35 states have return successors, (44), 43 states have call predecessors, (44), 43 states have call successors, (44) [2023-12-16 17:53:23,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1137 transitions. [2023-12-16 17:53:23,043 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1137 transitions. Word has length 91 [2023-12-16 17:53:23,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:23,043 INFO L495 AbstractCegarLoop]: Abstraction has 867 states and 1137 transitions. [2023-12-16 17:53:23,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:23,043 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1137 transitions. [2023-12-16 17:53:23,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 17:53:23,044 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:23,044 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] [2023-12-16 17:53:23,049 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-16 17:53:23,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:23,247 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:23,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:23,248 INFO L85 PathProgramCache]: Analyzing trace with hash -595906490, now seen corresponding path program 1 times [2023-12-16 17:53:23,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:23,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2012684442] [2023-12-16 17:53:23,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:23,248 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:23,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:23,249 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:53:23,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-12-16 17:53:23,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:23,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:53:23,309 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:23,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:53:23,320 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:23,320 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:23,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2012684442] [2023-12-16 17:53:23,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2012684442] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:23,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:23,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:53:23,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065831011] [2023-12-16 17:53:23,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:23,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:53:23,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:23,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:53:23,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:53:23,322 INFO L87 Difference]: Start difference. First operand 867 states and 1137 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:23,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:23,393 INFO L93 Difference]: Finished difference Result 1778 states and 2355 transitions. [2023-12-16 17:53:23,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:53:23,393 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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 91 [2023-12-16 17:53:23,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:23,397 INFO L225 Difference]: With dead ends: 1778 [2023-12-16 17:53:23,397 INFO L226 Difference]: Without dead ends: 923 [2023-12-16 17:53:23,398 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:53:23,399 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 38 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:23,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 741 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:53:23,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2023-12-16 17:53:23,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 871. [2023-12-16 17:53:23,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 871 states, 790 states have (on average 1.3164556962025316) internal successors, (1040), 793 states have internal predecessors, (1040), 45 states have call successors, (45), 35 states have call predecessors, (45), 35 states have return successors, (44), 43 states have call predecessors, (44), 43 states have call successors, (44) [2023-12-16 17:53:23,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 1129 transitions. [2023-12-16 17:53:23,456 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 1129 transitions. Word has length 91 [2023-12-16 17:53:23,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:23,456 INFO L495 AbstractCegarLoop]: Abstraction has 871 states and 1129 transitions. [2023-12-16 17:53:23,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:23,456 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 1129 transitions. [2023-12-16 17:53:23,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 17:53:23,457 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:23,457 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] [2023-12-16 17:53:23,462 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-16 17:53:23,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:23,662 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:23,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:23,664 INFO L85 PathProgramCache]: Analyzing trace with hash 280112516, now seen corresponding path program 1 times [2023-12-16 17:53:23,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:23,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [315696559] [2023-12-16 17:53:23,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:23,664 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:23,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:23,665 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:53:23,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-12-16 17:53:23,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:23,729 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:53:23,731 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:23,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:53:23,743 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:23,744 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:23,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [315696559] [2023-12-16 17:53:23,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [315696559] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:23,744 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:23,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:53:23,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537096884] [2023-12-16 17:53:23,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:23,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:53:23,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:23,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:53:23,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:53:23,745 INFO L87 Difference]: Start difference. First operand 871 states and 1129 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:23,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:23,811 INFO L93 Difference]: Finished difference Result 1774 states and 2323 transitions. [2023-12-16 17:53:23,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:53:23,811 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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 91 [2023-12-16 17:53:23,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:23,813 INFO L225 Difference]: With dead ends: 1774 [2023-12-16 17:53:23,813 INFO L226 Difference]: Without dead ends: 915 [2023-12-16 17:53:23,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:53:23,816 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 29 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:23,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 742 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:53:23,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 915 states. [2023-12-16 17:53:23,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 915 to 875. [2023-12-16 17:53:23,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 875 states, 794 states have (on average 1.2997481108312343) internal successors, (1032), 797 states have internal predecessors, (1032), 45 states have call successors, (45), 35 states have call predecessors, (45), 35 states have return successors, (44), 43 states have call predecessors, (44), 43 states have call successors, (44) [2023-12-16 17:53:23,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 875 states to 875 states and 1121 transitions. [2023-12-16 17:53:23,844 INFO L78 Accepts]: Start accepts. Automaton has 875 states and 1121 transitions. Word has length 91 [2023-12-16 17:53:23,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:23,845 INFO L495 AbstractCegarLoop]: Abstraction has 875 states and 1121 transitions. [2023-12-16 17:53:23,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:23,845 INFO L276 IsEmpty]: Start isEmpty. Operand 875 states and 1121 transitions. [2023-12-16 17:53:23,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 17:53:23,846 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:23,846 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:53:23,854 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-16 17:53:24,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:24,049 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:24,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:24,050 INFO L85 PathProgramCache]: Analyzing trace with hash 264593798, now seen corresponding path program 1 times [2023-12-16 17:53:24,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:24,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1443565567] [2023-12-16 17:53:24,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:24,050 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:24,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:24,051 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:53:24,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-16 17:53:24,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:24,110 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:53:24,111 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:24,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:53:24,122 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:24,122 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:24,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1443565567] [2023-12-16 17:53:24,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1443565567] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:24,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:24,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:53:24,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684131019] [2023-12-16 17:53:24,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:24,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:53:24,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:24,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:53:24,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:53:24,124 INFO L87 Difference]: Start difference. First operand 875 states and 1121 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:24,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:24,194 INFO L93 Difference]: Finished difference Result 1770 states and 2291 transitions. [2023-12-16 17:53:24,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:53:24,195 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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 91 [2023-12-16 17:53:24,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:24,198 INFO L225 Difference]: With dead ends: 1770 [2023-12-16 17:53:24,198 INFO L226 Difference]: Without dead ends: 907 [2023-12-16 17:53:24,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:53:24,224 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 20 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:24,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 743 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:53:24,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 907 states. [2023-12-16 17:53:24,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 907 to 879. [2023-12-16 17:53:24,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 879 states, 798 states have (on average 1.2832080200501252) internal successors, (1024), 801 states have internal predecessors, (1024), 45 states have call successors, (45), 35 states have call predecessors, (45), 35 states have return successors, (44), 43 states have call predecessors, (44), 43 states have call successors, (44) [2023-12-16 17:53:24,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 1113 transitions. [2023-12-16 17:53:24,269 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 1113 transitions. Word has length 91 [2023-12-16 17:53:24,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:24,269 INFO L495 AbstractCegarLoop]: Abstraction has 879 states and 1113 transitions. [2023-12-16 17:53:24,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:24,270 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 1113 transitions. [2023-12-16 17:53:24,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 17:53:24,270 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:24,270 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] [2023-12-16 17:53:24,276 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2023-12-16 17:53:24,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:24,474 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:24,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:24,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1784794044, now seen corresponding path program 1 times [2023-12-16 17:53:24,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:24,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2104964821] [2023-12-16 17:53:24,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:24,475 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:24,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:24,476 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:53:24,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-16 17:53:24,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:24,539 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:53:24,540 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:24,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:53:24,552 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:24,552 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:24,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2104964821] [2023-12-16 17:53:24,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2104964821] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:24,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:24,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:53:24,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359523543] [2023-12-16 17:53:24,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:24,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:53:24,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:24,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:53:24,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:53:24,553 INFO L87 Difference]: Start difference. First operand 879 states and 1113 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:24,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:24,618 INFO L93 Difference]: Finished difference Result 1754 states and 2243 transitions. [2023-12-16 17:53:24,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:53:24,619 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 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 91 [2023-12-16 17:53:24,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:24,621 INFO L225 Difference]: With dead ends: 1754 [2023-12-16 17:53:24,621 INFO L226 Difference]: Without dead ends: 887 [2023-12-16 17:53:24,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:53:24,623 INFO L413 NwaCegarLoop]: 250 mSDtfsCounter, 2 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:24,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 745 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:53:24,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2023-12-16 17:53:24,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 883. [2023-12-16 17:53:24,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 802 states have (on average 1.2668329177057356) internal successors, (1016), 805 states have internal predecessors, (1016), 45 states have call successors, (45), 35 states have call predecessors, (45), 35 states have return successors, (44), 43 states have call predecessors, (44), 43 states have call successors, (44) [2023-12-16 17:53:24,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1105 transitions. [2023-12-16 17:53:24,651 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1105 transitions. Word has length 91 [2023-12-16 17:53:24,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:24,651 INFO L495 AbstractCegarLoop]: Abstraction has 883 states and 1105 transitions. [2023-12-16 17:53:24,651 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-12-16 17:53:24,651 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1105 transitions. [2023-12-16 17:53:24,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 17:53:24,652 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:24,652 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] [2023-12-16 17:53:24,655 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-16 17:53:24,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:24,855 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:24,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:24,856 INFO L85 PathProgramCache]: Analyzing trace with hash 266189954, now seen corresponding path program 1 times [2023-12-16 17:53:24,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:24,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [531356552] [2023-12-16 17:53:24,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:24,856 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:24,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:24,858 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:53:24,888 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-16 17:53:24,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:24,920 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 17:53:24,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:25,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:53:25,019 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:25,019 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:25,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [531356552] [2023-12-16 17:53:25,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [531356552] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:25,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:25,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:53:25,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542513514] [2023-12-16 17:53:25,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:25,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 17:53:25,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:25,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 17:53:25,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:53:25,020 INFO L87 Difference]: Start difference. First operand 883 states and 1105 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2023-12-16 17:53:25,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:25,230 INFO L93 Difference]: Finished difference Result 1755 states and 2198 transitions. [2023-12-16 17:53:25,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 17:53:25,236 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 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 91 [2023-12-16 17:53:25,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:25,238 INFO L225 Difference]: With dead ends: 1755 [2023-12-16 17:53:25,238 INFO L226 Difference]: Without dead ends: 883 [2023-12-16 17:53:25,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-16 17:53:25,240 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 289 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:25,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 414 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:53:25,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2023-12-16 17:53:25,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 883. [2023-12-16 17:53:25,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 883 states, 802 states have (on average 1.2581047381546135) internal successors, (1009), 805 states have internal predecessors, (1009), 45 states have call successors, (45), 35 states have call predecessors, (45), 35 states have return successors, (44), 43 states have call predecessors, (44), 43 states have call successors, (44) [2023-12-16 17:53:25,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 883 states to 883 states and 1098 transitions. [2023-12-16 17:53:25,284 INFO L78 Accepts]: Start accepts. Automaton has 883 states and 1098 transitions. Word has length 91 [2023-12-16 17:53:25,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:25,285 INFO L495 AbstractCegarLoop]: Abstraction has 883 states and 1098 transitions. [2023-12-16 17:53:25,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 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) [2023-12-16 17:53:25,285 INFO L276 IsEmpty]: Start isEmpty. Operand 883 states and 1098 transitions. [2023-12-16 17:53:25,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-16 17:53:25,285 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:25,285 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] [2023-12-16 17:53:25,290 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-12-16 17:53:25,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:25,491 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:25,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:25,491 INFO L85 PathProgramCache]: Analyzing trace with hash 406738564, now seen corresponding path program 1 times [2023-12-16 17:53:25,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:25,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1446075927] [2023-12-16 17:53:25,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:25,492 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:25,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:25,493 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:53:25,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-12-16 17:53:25,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:25,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:53:25,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:25,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 17:53:25,636 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:25,637 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:25,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1446075927] [2023-12-16 17:53:25,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1446075927] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:25,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:25,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:53:25,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166516074] [2023-12-16 17:53:25,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:25,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:53:25,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:25,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:53:25,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:53:25,638 INFO L87 Difference]: Start difference. First operand 883 states and 1098 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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) [2023-12-16 17:53:25,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:25,729 INFO L93 Difference]: Finished difference Result 2586 states and 3223 transitions. [2023-12-16 17:53:25,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:53:25,729 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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 91 [2023-12-16 17:53:25,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:25,733 INFO L225 Difference]: With dead ends: 2586 [2023-12-16 17:53:25,733 INFO L226 Difference]: Without dead ends: 1715 [2023-12-16 17:53:25,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:53:25,735 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 160 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:25,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 503 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:53:25,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1715 states. [2023-12-16 17:53:25,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1715 to 1713. [2023-12-16 17:53:25,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1713 states, 1558 states have (on average 1.2400513478819) internal successors, (1932), 1564 states have internal predecessors, (1932), 84 states have call successors, (84), 69 states have call predecessors, (84), 70 states have return successors, (84), 80 states have call predecessors, (84), 82 states have call successors, (84) [2023-12-16 17:53:25,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1713 states to 1713 states and 2100 transitions. [2023-12-16 17:53:25,792 INFO L78 Accepts]: Start accepts. Automaton has 1713 states and 2100 transitions. Word has length 91 [2023-12-16 17:53:25,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:25,792 INFO L495 AbstractCegarLoop]: Abstraction has 1713 states and 2100 transitions. [2023-12-16 17:53:25,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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) [2023-12-16 17:53:25,792 INFO L276 IsEmpty]: Start isEmpty. Operand 1713 states and 2100 transitions. [2023-12-16 17:53:25,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-16 17:53:25,807 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:25,808 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:53:25,813 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2023-12-16 17:53:26,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:26,011 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:26,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:26,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1207804620, now seen corresponding path program 1 times [2023-12-16 17:53:26,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:26,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1964204532] [2023-12-16 17:53:26,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:26,012 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:26,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:26,013 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:53:26,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-12-16 17:53:26,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:26,095 INFO L262 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:53:26,097 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:26,224 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-16 17:53:26,224 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:26,224 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:26,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1964204532] [2023-12-16 17:53:26,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1964204532] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:26,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:26,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:53:26,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302854850] [2023-12-16 17:53:26,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:26,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:53:26,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:26,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:53:26,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:53:26,225 INFO L87 Difference]: Start difference. First operand 1713 states and 2100 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 17:53:26,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:26,531 INFO L93 Difference]: Finished difference Result 5019 states and 6149 transitions. [2023-12-16 17:53:26,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:53:26,532 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 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 147 [2023-12-16 17:53:26,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:26,540 INFO L225 Difference]: With dead ends: 5019 [2023-12-16 17:53:26,540 INFO L226 Difference]: Without dead ends: 3319 [2023-12-16 17:53:26,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:53:26,543 INFO L413 NwaCegarLoop]: 297 mSDtfsCounter, 323 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 328 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:26,543 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [328 Valid, 686 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:53:26,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3319 states. [2023-12-16 17:53:26,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3319 to 3315. [2023-12-16 17:53:26,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3315 states, 3017 states have (on average 1.2306927411335764) internal successors, (3713), 3032 states have internal predecessors, (3713), 157 states have call successors, (157), 129 states have call predecessors, (157), 140 states have return successors, (179), 155 states have call predecessors, (179), 155 states have call successors, (179) [2023-12-16 17:53:26,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3315 states to 3315 states and 4049 transitions. [2023-12-16 17:53:26,681 INFO L78 Accepts]: Start accepts. Automaton has 3315 states and 4049 transitions. Word has length 147 [2023-12-16 17:53:26,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:26,681 INFO L495 AbstractCegarLoop]: Abstraction has 3315 states and 4049 transitions. [2023-12-16 17:53:26,681 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 17:53:26,682 INFO L276 IsEmpty]: Start isEmpty. Operand 3315 states and 4049 transitions. [2023-12-16 17:53:26,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-16 17:53:26,684 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:26,685 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:53:26,691 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-12-16 17:53:26,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:26,889 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:26,890 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:26,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1363785162, now seen corresponding path program 1 times [2023-12-16 17:53:26,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:26,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [830843558] [2023-12-16 17:53:26,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:26,890 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:26,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:26,891 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:53:26,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-16 17:53:26,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:26,990 INFO L262 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:53:26,993 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:27,003 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 17:53:27,004 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:27,004 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:27,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [830843558] [2023-12-16 17:53:27,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [830843558] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:27,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:27,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:53:27,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129827306] [2023-12-16 17:53:27,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:27,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:53:27,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:27,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:53:27,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:53:27,006 INFO L87 Difference]: Start difference. First operand 3315 states and 4049 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:53:27,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:27,182 INFO L93 Difference]: Finished difference Result 6609 states and 8060 transitions. [2023-12-16 17:53:27,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:53:27,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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 147 [2023-12-16 17:53:27,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:27,190 INFO L225 Difference]: With dead ends: 6609 [2023-12-16 17:53:27,190 INFO L226 Difference]: Without dead ends: 3307 [2023-12-16 17:53:27,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:53:27,194 INFO L413 NwaCegarLoop]: 246 mSDtfsCounter, 263 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:27,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 246 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:53:27,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3307 states. [2023-12-16 17:53:27,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3307 to 3307. [2023-12-16 17:53:27,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3307 states, 3012 states have (on average 1.2294156706507304) internal successors, (3703), 3026 states have internal predecessors, (3703), 154 states have call successors, (154), 129 states have call predecessors, (154), 140 states have return successors, (176), 152 states have call predecessors, (176), 152 states have call successors, (176) [2023-12-16 17:53:27,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3307 states to 3307 states and 4033 transitions. [2023-12-16 17:53:27,351 INFO L78 Accepts]: Start accepts. Automaton has 3307 states and 4033 transitions. Word has length 147 [2023-12-16 17:53:27,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:27,352 INFO L495 AbstractCegarLoop]: Abstraction has 3307 states and 4033 transitions. [2023-12-16 17:53:27,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:53:27,352 INFO L276 IsEmpty]: Start isEmpty. Operand 3307 states and 4033 transitions. [2023-12-16 17:53:27,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-16 17:53:27,354 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:27,354 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:53:27,357 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 [2023-12-16 17:53:27,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:27,557 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:27,558 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:27,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1033767193, now seen corresponding path program 1 times [2023-12-16 17:53:27,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:27,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [352224950] [2023-12-16 17:53:27,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:27,558 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:27,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:27,559 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:53:27,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-12-16 17:53:27,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:27,634 INFO L262 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:53:27,637 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:27,783 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-16 17:53:27,783 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:27,783 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:27,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [352224950] [2023-12-16 17:53:27,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [352224950] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:27,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:27,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:53:27,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972689499] [2023-12-16 17:53:27,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:27,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:53:27,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:27,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:53:27,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:53:27,784 INFO L87 Difference]: Start difference. First operand 3307 states and 4033 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 17:53:28,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:28,200 INFO L93 Difference]: Finished difference Result 9582 states and 11684 transitions. [2023-12-16 17:53:28,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:53:28,201 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 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 149 [2023-12-16 17:53:28,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:28,214 INFO L225 Difference]: With dead ends: 9582 [2023-12-16 17:53:28,215 INFO L226 Difference]: Without dead ends: 6288 [2023-12-16 17:53:28,218 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:53:28,218 INFO L413 NwaCegarLoop]: 281 mSDtfsCounter, 318 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:28,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 652 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:53:28,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6288 states. [2023-12-16 17:53:28,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6288 to 6284. [2023-12-16 17:53:28,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6284 states, 5722 states have (on average 1.2236980076896191) internal successors, (7002), 5753 states have internal predecessors, (7002), 289 states have call successors, (289), 241 states have call predecessors, (289), 272 states have return successors, (355), 291 states have call predecessors, (355), 287 states have call successors, (355) [2023-12-16 17:53:28,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6284 states to 6284 states and 7646 transitions. [2023-12-16 17:53:28,460 INFO L78 Accepts]: Start accepts. Automaton has 6284 states and 7646 transitions. Word has length 149 [2023-12-16 17:53:28,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:28,460 INFO L495 AbstractCegarLoop]: Abstraction has 6284 states and 7646 transitions. [2023-12-16 17:53:28,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 17:53:28,461 INFO L276 IsEmpty]: Start isEmpty. Operand 6284 states and 7646 transitions. [2023-12-16 17:53:28,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-16 17:53:28,464 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:28,464 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:53:28,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-12-16 17:53:28,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:28,667 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:28,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:28,668 INFO L85 PathProgramCache]: Analyzing trace with hash 493337687, now seen corresponding path program 1 times [2023-12-16 17:53:28,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:28,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2007070305] [2023-12-16 17:53:28,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:28,668 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:28,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:28,669 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:53:28,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2023-12-16 17:53:28,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:28,745 INFO L262 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:53:28,747 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:28,758 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 17:53:28,758 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:28,759 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:28,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2007070305] [2023-12-16 17:53:28,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2007070305] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:28,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:28,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:53:28,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804733106] [2023-12-16 17:53:28,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:28,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:53:28,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:28,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:53:28,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:53:28,760 INFO L87 Difference]: Start difference. First operand 6284 states and 7646 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:53:29,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:29,030 INFO L93 Difference]: Finished difference Result 12548 states and 15257 transitions. [2023-12-16 17:53:29,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:53:29,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 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 149 [2023-12-16 17:53:29,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:29,053 INFO L225 Difference]: With dead ends: 12548 [2023-12-16 17:53:29,053 INFO L226 Difference]: Without dead ends: 6277 [2023-12-16 17:53:29,062 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:53:29,063 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 261 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:29,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 245 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:53:29,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6277 states. [2023-12-16 17:53:29,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6277 to 6277. [2023-12-16 17:53:29,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6277 states, 5718 states have (on average 1.223154949282966) internal successors, (6994), 5748 states have internal predecessors, (6994), 286 states have call successors, (286), 241 states have call predecessors, (286), 272 states have return successors, (352), 288 states have call predecessors, (352), 284 states have call successors, (352) [2023-12-16 17:53:29,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6277 states to 6277 states and 7632 transitions. [2023-12-16 17:53:29,332 INFO L78 Accepts]: Start accepts. Automaton has 6277 states and 7632 transitions. Word has length 149 [2023-12-16 17:53:29,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:29,332 INFO L495 AbstractCegarLoop]: Abstraction has 6277 states and 7632 transitions. [2023-12-16 17:53:29,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:53:29,333 INFO L276 IsEmpty]: Start isEmpty. Operand 6277 states and 7632 transitions. [2023-12-16 17:53:29,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-16 17:53:29,336 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:29,336 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:53:29,355 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2023-12-16 17:53:29,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:29,538 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:29,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:29,539 INFO L85 PathProgramCache]: Analyzing trace with hash 733739956, now seen corresponding path program 1 times [2023-12-16 17:53:29,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:29,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1054513193] [2023-12-16 17:53:29,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:29,539 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:29,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:29,541 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:53:29,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-16 17:53:29,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:29,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:53:29,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:29,752 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-16 17:53:29,752 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:29,752 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:29,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1054513193] [2023-12-16 17:53:29,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1054513193] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:29,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:29,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:53:29,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782349494] [2023-12-16 17:53:29,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:29,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:53:29,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:29,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:53:29,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:53:29,753 INFO L87 Difference]: Start difference. First operand 6277 states and 7632 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 17:53:30,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:30,337 INFO L93 Difference]: Finished difference Result 18171 states and 22097 transitions. [2023-12-16 17:53:30,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:53:30,338 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 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 151 [2023-12-16 17:53:30,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:30,361 INFO L225 Difference]: With dead ends: 18171 [2023-12-16 17:53:30,361 INFO L226 Difference]: Without dead ends: 11907 [2023-12-16 17:53:30,368 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:53:30,368 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 311 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:30,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 620 Invalid, 283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:53:30,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11907 states. [2023-12-16 17:53:30,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11907 to 11903. [2023-12-16 17:53:30,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11903 states, 10837 states have (on average 1.2194334225339116) internal successors, (13215), 10904 states have internal predecessors, (13215), 537 states have call successors, (537), 449 states have call predecessors, (537), 528 states have return successors, (699), 551 states have call predecessors, (699), 535 states have call successors, (699) [2023-12-16 17:53:30,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11903 states to 11903 states and 14451 transitions. [2023-12-16 17:53:30,909 INFO L78 Accepts]: Start accepts. Automaton has 11903 states and 14451 transitions. Word has length 151 [2023-12-16 17:53:30,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:30,909 INFO L495 AbstractCegarLoop]: Abstraction has 11903 states and 14451 transitions. [2023-12-16 17:53:30,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 17:53:30,910 INFO L276 IsEmpty]: Start isEmpty. Operand 11903 states and 14451 transitions. [2023-12-16 17:53:30,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-12-16 17:53:30,916 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:30,917 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:53:30,920 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-16 17:53:31,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:31,120 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:31,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:31,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1160294454, now seen corresponding path program 1 times [2023-12-16 17:53:31,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:31,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1150850073] [2023-12-16 17:53:31,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:31,121 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:31,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:31,122 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:53:31,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-12-16 17:53:31,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:31,195 INFO L262 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:53:31,197 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:31,208 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 17:53:31,208 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:31,208 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:31,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1150850073] [2023-12-16 17:53:31,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1150850073] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:31,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:31,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:53:31,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585382981] [2023-12-16 17:53:31,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:31,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:53:31,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:31,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:53:31,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:53:31,210 INFO L87 Difference]: Start difference. First operand 11903 states and 14451 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:53:31,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:31,635 INFO L93 Difference]: Finished difference Result 23787 states and 28870 transitions. [2023-12-16 17:53:31,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:53:31,635 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 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 151 [2023-12-16 17:53:31,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:31,667 INFO L225 Difference]: With dead ends: 23787 [2023-12-16 17:53:31,667 INFO L226 Difference]: Without dead ends: 11897 [2023-12-16 17:53:31,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:53:31,683 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 259 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:31,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 244 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:53:31,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11897 states. [2023-12-16 17:53:32,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11897 to 11897. [2023-12-16 17:53:32,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11897 states, 10834 states have (on average 1.2192172789366809) internal successors, (13209), 10900 states have internal predecessors, (13209), 534 states have call successors, (534), 449 states have call predecessors, (534), 528 states have return successors, (696), 548 states have call predecessors, (696), 532 states have call successors, (696) [2023-12-16 17:53:32,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11897 states to 11897 states and 14439 transitions. [2023-12-16 17:53:32,285 INFO L78 Accepts]: Start accepts. Automaton has 11897 states and 14439 transitions. Word has length 151 [2023-12-16 17:53:32,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:32,285 INFO L495 AbstractCegarLoop]: Abstraction has 11897 states and 14439 transitions. [2023-12-16 17:53:32,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:53:32,285 INFO L276 IsEmpty]: Start isEmpty. Operand 11897 states and 14439 transitions. [2023-12-16 17:53:32,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-16 17:53:32,291 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:32,291 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:53:32,295 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-12-16 17:53:32,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:32,494 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:32,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:32,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1716932391, now seen corresponding path program 1 times [2023-12-16 17:53:32,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:32,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [523570088] [2023-12-16 17:53:32,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:32,495 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:32,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:32,498 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:53:32,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-12-16 17:53:32,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:32,576 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:53:32,579 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:32,722 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-16 17:53:32,722 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:32,723 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:32,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [523570088] [2023-12-16 17:53:32,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [523570088] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:32,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:32,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:53:32,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269105964] [2023-12-16 17:53:32,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:32,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:53:32,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:32,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:53:32,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:53:32,724 INFO L87 Difference]: Start difference. First operand 11897 states and 14439 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 17:53:33,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:33,817 INFO L93 Difference]: Finished difference Result 36226 states and 43783 transitions. [2023-12-16 17:53:33,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:53:33,818 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 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 153 [2023-12-16 17:53:33,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:33,862 INFO L225 Difference]: With dead ends: 36226 [2023-12-16 17:53:33,862 INFO L226 Difference]: Without dead ends: 24342 [2023-12-16 17:53:33,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:53:33,880 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 313 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:33,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 597 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:53:33,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24342 states. [2023-12-16 17:53:34,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24342 to 23890. [2023-12-16 17:53:34,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23890 states, 21576 states have (on average 1.2093066370040786) internal successors, (26092), 21883 states have internal predecessors, (26092), 1001 states have call successors, (1001), 833 states have call predecessors, (1001), 1312 states have return successors, (1676), 1175 states have call predecessors, (1676), 999 states have call successors, (1676) [2023-12-16 17:53:34,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23890 states to 23890 states and 28769 transitions. [2023-12-16 17:53:34,933 INFO L78 Accepts]: Start accepts. Automaton has 23890 states and 28769 transitions. Word has length 153 [2023-12-16 17:53:34,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:34,933 INFO L495 AbstractCegarLoop]: Abstraction has 23890 states and 28769 transitions. [2023-12-16 17:53:34,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 17:53:34,934 INFO L276 IsEmpty]: Start isEmpty. Operand 23890 states and 28769 transitions. [2023-12-16 17:53:34,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-12-16 17:53:34,945 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:34,945 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:53:34,950 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-12-16 17:53:35,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:35,148 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:35,148 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:35,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1378644841, now seen corresponding path program 1 times [2023-12-16 17:53:35,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:35,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [412767946] [2023-12-16 17:53:35,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:35,149 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:35,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:35,150 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:53:35,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-12-16 17:53:35,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:35,231 INFO L262 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:53:35,233 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:35,245 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 17:53:35,245 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:35,245 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:35,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [412767946] [2023-12-16 17:53:35,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [412767946] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:35,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:35,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:53:35,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901867755] [2023-12-16 17:53:35,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:35,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:53:35,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:35,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:53:35,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:53:35,247 INFO L87 Difference]: Start difference. First operand 23890 states and 28769 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:53:36,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:36,244 INFO L93 Difference]: Finished difference Result 47763 states and 57510 transitions. [2023-12-16 17:53:36,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:53:36,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 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 153 [2023-12-16 17:53:36,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:36,288 INFO L225 Difference]: With dead ends: 47763 [2023-12-16 17:53:36,288 INFO L226 Difference]: Without dead ends: 23885 [2023-12-16 17:53:36,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:53:36,312 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 257 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 243 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:36,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 243 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:53:36,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23885 states. [2023-12-16 17:53:37,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23885 to 23885. [2023-12-16 17:53:37,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23885 states, 21574 states have (on average 1.2092333364234726) internal successors, (26088), 21880 states have internal predecessors, (26088), 998 states have call successors, (998), 833 states have call predecessors, (998), 1312 states have return successors, (1672), 1172 states have call predecessors, (1672), 996 states have call successors, (1672) [2023-12-16 17:53:37,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23885 states to 23885 states and 28758 transitions. [2023-12-16 17:53:37,249 INFO L78 Accepts]: Start accepts. Automaton has 23885 states and 28758 transitions. Word has length 153 [2023-12-16 17:53:37,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:37,249 INFO L495 AbstractCegarLoop]: Abstraction has 23885 states and 28758 transitions. [2023-12-16 17:53:37,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:53:37,249 INFO L276 IsEmpty]: Start isEmpty. Operand 23885 states and 28758 transitions. [2023-12-16 17:53:37,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-16 17:53:37,258 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:37,258 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:53:37,261 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 (27)] Ended with exit code 0 [2023-12-16 17:53:37,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:37,461 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:37,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:37,461 INFO L85 PathProgramCache]: Analyzing trace with hash -738008524, now seen corresponding path program 1 times [2023-12-16 17:53:37,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:37,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2032008963] [2023-12-16 17:53:37,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:37,462 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:37,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:37,462 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:53:37,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-12-16 17:53:37,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:37,540 INFO L262 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 17:53:37,542 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:37,698 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-16 17:53:37,698 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:37,698 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:37,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2032008963] [2023-12-16 17:53:37,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2032008963] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:37,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:37,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:53:37,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715590611] [2023-12-16 17:53:37,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:37,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:53:37,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:37,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:53:37,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:53:37,700 INFO L87 Difference]: Start difference. First operand 23885 states and 28758 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 17:53:39,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:39,635 INFO L93 Difference]: Finished difference Result 68337 states and 82267 transitions. [2023-12-16 17:53:39,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:53:39,636 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 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 155 [2023-12-16 17:53:39,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:39,717 INFO L225 Difference]: With dead ends: 68337 [2023-12-16 17:53:39,717 INFO L226 Difference]: Without dead ends: 44465 [2023-12-16 17:53:39,744 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:53:39,744 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 296 mSDsluCounter, 316 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:39,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 555 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:53:39,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44465 states. [2023-12-16 17:53:41,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44465 to 44461. [2023-12-16 17:53:41,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44461 states, 40099 states have (on average 1.2058405446519864) internal successors, (48353), 40710 states have internal predecessors, (48353), 1865 states have call successors, (1865), 1537 states have call predecessors, (1865), 2496 states have return successors, (3227), 2215 states have call predecessors, (3227), 1863 states have call successors, (3227) [2023-12-16 17:53:41,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44461 states to 44461 states and 53445 transitions. [2023-12-16 17:53:41,602 INFO L78 Accepts]: Start accepts. Automaton has 44461 states and 53445 transitions. Word has length 155 [2023-12-16 17:53:41,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:41,602 INFO L495 AbstractCegarLoop]: Abstraction has 44461 states and 53445 transitions. [2023-12-16 17:53:41,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 4 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2023-12-16 17:53:41,603 INFO L276 IsEmpty]: Start isEmpty. Operand 44461 states and 53445 transitions. [2023-12-16 17:53:41,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-12-16 17:53:41,621 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:41,621 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:53:41,636 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Forceful destruction successful, exit code 0 [2023-12-16 17:53:41,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:41,837 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:41,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:41,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1158970934, now seen corresponding path program 1 times [2023-12-16 17:53:41,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:41,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [748701463] [2023-12-16 17:53:41,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:41,837 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:41,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:41,838 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:53:41,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2023-12-16 17:53:41,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:41,914 INFO L262 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:53:41,915 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:41,928 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-12-16 17:53:41,928 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:41,928 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:41,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [748701463] [2023-12-16 17:53:41,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [748701463] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:41,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:41,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:53:41,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444004067] [2023-12-16 17:53:41,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:41,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:53:41,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:41,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:53:41,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:53:41,929 INFO L87 Difference]: Start difference. First operand 44461 states and 53445 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:53:43,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:43,873 INFO L93 Difference]: Finished difference Result 88905 states and 106864 transitions. [2023-12-16 17:53:43,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:53:43,874 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 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 155 [2023-12-16 17:53:43,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:43,947 INFO L225 Difference]: With dead ends: 88905 [2023-12-16 17:53:43,947 INFO L226 Difference]: Without dead ends: 44457 [2023-12-16 17:53:43,981 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:53:43,982 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 255 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:43,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 242 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:53:44,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44457 states. [2023-12-16 17:53:45,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44457 to 44457. [2023-12-16 17:53:45,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44457 states, 40098 states have (on average 1.205820739188987) internal successors, (48351), 40708 states have internal predecessors, (48351), 1862 states have call successors, (1862), 1537 states have call predecessors, (1862), 2496 states have return successors, (3224), 2212 states have call predecessors, (3224), 1860 states have call successors, (3224) [2023-12-16 17:53:45,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44457 states to 44457 states and 53437 transitions. [2023-12-16 17:53:45,824 INFO L78 Accepts]: Start accepts. Automaton has 44457 states and 53437 transitions. Word has length 155 [2023-12-16 17:53:45,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:45,824 INFO L495 AbstractCegarLoop]: Abstraction has 44457 states and 53437 transitions. [2023-12-16 17:53:45,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-12-16 17:53:45,824 INFO L276 IsEmpty]: Start isEmpty. Operand 44457 states and 53437 transitions. [2023-12-16 17:53:45,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-12-16 17:53:45,839 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:45,839 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:53:45,844 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2023-12-16 17:53:46,040 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:46,040 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:46,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:46,040 INFO L85 PathProgramCache]: Analyzing trace with hash 2120872089, now seen corresponding path program 1 times [2023-12-16 17:53:46,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:46,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1200123143] [2023-12-16 17:53:46,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:46,041 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:46,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:46,042 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:53:46,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-12-16 17:53:46,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:46,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:53:46,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:46,152 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-16 17:53:46,152 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:46,152 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:46,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1200123143] [2023-12-16 17:53:46,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1200123143] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:46,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:46,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:53:46,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64625424] [2023-12-16 17:53:46,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:46,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:53:46,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:46,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:53:46,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:53:46,154 INFO L87 Difference]: Start difference. First operand 44457 states and 53437 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:53:49,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:49,377 INFO L93 Difference]: Finished difference Result 124006 states and 149276 transitions. [2023-12-16 17:53:49,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:53:49,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 157 [2023-12-16 17:53:49,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:49,476 INFO L225 Difference]: With dead ends: 124006 [2023-12-16 17:53:49,476 INFO L226 Difference]: Without dead ends: 62181 [2023-12-16 17:53:49,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:53:49,512 INFO L413 NwaCegarLoop]: 443 mSDtfsCounter, 205 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:49,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 678 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:53:49,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62181 states. [2023-12-16 17:53:52,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62181 to 62181. [2023-12-16 17:53:52,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62181 states, 56062 states have (on average 1.201954978416753) internal successors, (67384), 56864 states have internal predecessors, (67384), 2662 states have call successors, (2662), 2177 states have call predecessors, (2662), 3456 states have return successors, (4642), 3140 states have call predecessors, (4642), 2660 states have call successors, (4642) [2023-12-16 17:53:52,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62181 states to 62181 states and 74688 transitions. [2023-12-16 17:53:52,355 INFO L78 Accepts]: Start accepts. Automaton has 62181 states and 74688 transitions. Word has length 157 [2023-12-16 17:53:52,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:53:52,355 INFO L495 AbstractCegarLoop]: Abstraction has 62181 states and 74688 transitions. [2023-12-16 17:53:52,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 3 states have call successors, (9), 3 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-12-16 17:53:52,356 INFO L276 IsEmpty]: Start isEmpty. Operand 62181 states and 74688 transitions. [2023-12-16 17:53:52,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2023-12-16 17:53:52,383 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:53:52,383 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-16 17:53:52,387 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Ended with exit code 0 [2023-12-16 17:53:52,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:52,584 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:53:52,584 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:53:52,585 INFO L85 PathProgramCache]: Analyzing trace with hash -719939030, now seen corresponding path program 1 times [2023-12-16 17:53:52,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:53:52,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [488276804] [2023-12-16 17:53:52,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:53:52,585 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:53:52,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:53:52,586 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:53:52,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2023-12-16 17:53:52,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:53:52,676 INFO L262 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:53:52,679 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:53:52,804 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-16 17:53:52,804 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:53:52,804 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:53:52,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [488276804] [2023-12-16 17:53:52,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [488276804] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:53:52,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:53:52,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:53:52,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123819816] [2023-12-16 17:53:52,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:53:52,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:53:52,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:53:52,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:53:52,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:53:52,806 INFO L87 Difference]: Start difference. First operand 62181 states and 74688 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 2 states have internal predecessors, (146), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 17:53:56,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:53:56,282 INFO L93 Difference]: Finished difference Result 142146 states and 171310 transitions. [2023-12-16 17:53:56,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:53:56,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 2 states have internal predecessors, (146), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 198 [2023-12-16 17:53:56,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:53:56,448 INFO L225 Difference]: With dead ends: 142146 [2023-12-16 17:53:56,449 INFO L226 Difference]: Without dead ends: 79977 [2023-12-16 17:53:56,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:53:56,510 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 120 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:53:56,510 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 463 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:53:56,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79977 states. [2023-12-16 17:54:00,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79977 to 79881. [2023-12-16 17:54:00,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79881 states, 71986 states have (on average 1.1934542827772068) internal successors, (85912), 72988 states have internal predecessors, (85912), 3462 states have call successors, (3462), 2817 states have call predecessors, (3462), 4432 states have return successors, (5974), 4076 states have call predecessors, (5974), 3460 states have call successors, (5974) [2023-12-16 17:54:00,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79881 states to 79881 states and 95348 transitions. [2023-12-16 17:54:00,212 INFO L78 Accepts]: Start accepts. Automaton has 79881 states and 95348 transitions. Word has length 198 [2023-12-16 17:54:00,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:54:00,212 INFO L495 AbstractCegarLoop]: Abstraction has 79881 states and 95348 transitions. [2023-12-16 17:54:00,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 2 states have internal predecessors, (146), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-12-16 17:54:00,212 INFO L276 IsEmpty]: Start isEmpty. Operand 79881 states and 95348 transitions. [2023-12-16 17:54:00,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2023-12-16 17:54:00,252 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:54:00,253 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2023-12-16 17:54:00,257 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2023-12-16 17:54:00,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:54:00,453 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:54:00,454 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:54:00,454 INFO L85 PathProgramCache]: Analyzing trace with hash -951926613, now seen corresponding path program 1 times [2023-12-16 17:54:00,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:54:00,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1175705713] [2023-12-16 17:54:00,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:54:00,454 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:54:00,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:54:00,455 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:54:00,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2023-12-16 17:54:00,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:54:00,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 17:54:00,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:54:00,627 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-12-16 17:54:00,627 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:54:00,627 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:54:00,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1175705713] [2023-12-16 17:54:00,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1175705713] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:54:00,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:54:00,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 17:54:00,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109107688] [2023-12-16 17:54:00,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:54:00,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 17:54:00,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:54:00,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 17:54:00,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 17:54:00,629 INFO L87 Difference]: Start difference. First operand 79881 states and 95348 transitions. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-16 17:54:04,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:54:04,534 INFO L93 Difference]: Finished difference Result 160687 states and 192055 transitions. [2023-12-16 17:54:04,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 17:54:04,535 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 225 [2023-12-16 17:54:04,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:54:04,722 INFO L225 Difference]: With dead ends: 160687 [2023-12-16 17:54:04,722 INFO L226 Difference]: Without dead ends: 80819 [2023-12-16 17:54:04,790 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 17:54:04,791 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 315 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 486 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 17:54:04,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [321 Valid, 486 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 17:54:04,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80819 states. [2023-12-16 17:54:08,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80819 to 80819. [2023-12-16 17:54:08,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80819 states, 72828 states have (on average 1.1875652221672983) internal successors, (86488), 73878 states have internal predecessors, (86488), 3462 states have call successors, (3462), 2817 states have call predecessors, (3462), 4528 states have return successors, (5512), 4124 states have call predecessors, (5512), 3460 states have call successors, (5512) [2023-12-16 17:54:08,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80819 states to 80819 states and 95462 transitions. [2023-12-16 17:54:08,754 INFO L78 Accepts]: Start accepts. Automaton has 80819 states and 95462 transitions. Word has length 225 [2023-12-16 17:54:08,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:54:08,755 INFO L495 AbstractCegarLoop]: Abstraction has 80819 states and 95462 transitions. [2023-12-16 17:54:08,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 3 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-12-16 17:54:08,755 INFO L276 IsEmpty]: Start isEmpty. Operand 80819 states and 95462 transitions. [2023-12-16 17:54:08,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2023-12-16 17:54:08,796 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:54:08,796 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2023-12-16 17:54:08,803 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Forceful destruction successful, exit code 0 [2023-12-16 17:54:09,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:54:09,001 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:54:09,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:54:09,002 INFO L85 PathProgramCache]: Analyzing trace with hash -534459088, now seen corresponding path program 1 times [2023-12-16 17:54:09,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:54:09,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1037077947] [2023-12-16 17:54:09,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:54:09,002 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 [2023-12-16 17:54:09,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:54:09,003 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:54:09,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2023-12-16 17:54:09,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:54:09,100 INFO L262 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:54:09,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:54:09,129 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-12-16 17:54:09,130 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:54:09,130 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:54:09,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1037077947] [2023-12-16 17:54:09,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1037077947] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:54:09,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:54:09,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 17:54:09,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515465963] [2023-12-16 17:54:09,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:54:09,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:54:09,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:54:09,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:54:09,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:54:09,131 INFO L87 Difference]: Start difference. First operand 80819 states and 95462 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:54:12,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:54:12,518 INFO L93 Difference]: Finished difference Result 143991 states and 170496 transitions. [2023-12-16 17:54:12,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:54:12,519 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 226 [2023-12-16 17:54:12,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:54:12,690 INFO L225 Difference]: With dead ends: 143991 [2023-12-16 17:54:12,690 INFO L226 Difference]: Without dead ends: 80823 [2023-12-16 17:54:12,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:54:12,752 INFO L413 NwaCegarLoop]: 430 mSDtfsCounter, 208 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 17:54:12,752 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 666 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 17:54:12,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80823 states. [2023-12-16 17:54:16,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80823 to 80819. [2023-12-16 17:54:16,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80819 states, 72828 states have (on average 1.1862195858735651) internal successors, (86390), 73878 states have internal predecessors, (86390), 3462 states have call successors, (3462), 2817 states have call predecessors, (3462), 4528 states have return successors, (5506), 4124 states have call predecessors, (5506), 3460 states have call successors, (5506) [2023-12-16 17:54:16,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80819 states to 80819 states and 95358 transitions. [2023-12-16 17:54:16,763 INFO L78 Accepts]: Start accepts. Automaton has 80819 states and 95358 transitions. Word has length 226 [2023-12-16 17:54:16,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 17:54:16,764 INFO L495 AbstractCegarLoop]: Abstraction has 80819 states and 95358 transitions. [2023-12-16 17:54:16,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-12-16 17:54:16,764 INFO L276 IsEmpty]: Start isEmpty. Operand 80819 states and 95358 transitions. [2023-12-16 17:54:16,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2023-12-16 17:54:16,815 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 17:54:16,816 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-16 17:54:16,820 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 (33)] Ended with exit code 0 [2023-12-16 17:54:17,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:54:17,016 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 17:54:17,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 17:54:17,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1486898271, now seen corresponding path program 1 times [2023-12-16 17:54:17,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 17:54:17,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [682299865] [2023-12-16 17:54:17,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 17:54:17,017 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:54:17,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 17:54:17,018 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 17:54:17,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2023-12-16 17:54:17,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 17:54:17,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 17:54:17,130 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 17:54:17,283 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-12-16 17:54:17,283 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 17:54:17,283 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 17:54:17,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [682299865] [2023-12-16 17:54:17,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [682299865] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 17:54:17,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 17:54:17,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 17:54:17,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856028540] [2023-12-16 17:54:17,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 17:54:17,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 17:54:17,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 17:54:17,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 17:54:17,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:54:17,285 INFO L87 Difference]: Start difference. First operand 80819 states and 95358 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 2 states have internal predecessors, (168), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2023-12-16 17:54:21,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 17:54:21,580 INFO L93 Difference]: Finished difference Result 176894 states and 209050 transitions. [2023-12-16 17:54:21,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 17:54:21,582 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 2 states have internal predecessors, (168), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 267 [2023-12-16 17:54:21,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 17:54:21,762 INFO L225 Difference]: With dead ends: 176894 [2023-12-16 17:54:21,762 INFO L226 Difference]: Without dead ends: 96087 [2023-12-16 17:54:21,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 17:54:21,821 INFO L413 NwaCegarLoop]: 240 mSDtfsCounter, 103 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 17:54:21,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 461 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 17:54:21,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96087 states. Received shutdown request... [2023-12-16 17:54:22,189 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 17:54:22,193 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Ended with exit code 0 [2023-12-16 17:54:22,221 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:54:22,221 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 17:54:22,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 17:54:22,390 WARN L619 AbstractCegarLoop]: Verification canceled: while executing MinimizeSevpa. [2023-12-16 17:54:22,395 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 17:54:22,397 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 17:54:22,403 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 05:54:22 BoogieIcfgContainer [2023-12-16 17:54:22,403 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 17:54:22,403 INFO L158 Benchmark]: Toolchain (without parser) took 67664.99ms. Allocated memory was 306.2MB in the beginning and 7.3GB in the end (delta: 7.0GB). Free memory was 260.0MB in the beginning and 5.8GB in the end (delta: -5.5GB). Peak memory consumption was 3.0GB. Max. memory is 8.0GB. [2023-12-16 17:54:22,406 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 183.5MB. Free memory is still 134.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 17:54:22,406 INFO L158 Benchmark]: CACSL2BoogieTranslator took 278.08ms. Allocated memory is still 306.2MB. Free memory was 260.0MB in the beginning and 242.1MB in the end (delta: 17.9MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-16 17:54:22,406 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.11ms. Allocated memory is still 306.2MB. Free memory was 242.1MB in the beginning and 239.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-16 17:54:22,407 INFO L158 Benchmark]: Boogie Preprocessor took 33.87ms. Allocated memory is still 306.2MB. Free memory was 239.4MB in the beginning and 235.9MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 17:54:22,420 INFO L158 Benchmark]: RCFGBuilder took 565.25ms. Allocated memory is still 306.2MB. Free memory was 235.9MB in the beginning and 263.7MB in the end (delta: -27.8MB). Peak memory consumption was 38.2MB. Max. memory is 8.0GB. [2023-12-16 17:54:22,421 INFO L158 Benchmark]: TraceAbstraction took 66751.40ms. Allocated memory was 306.2MB in the beginning and 7.3GB in the end (delta: 7.0GB). Free memory was 263.2MB in the beginning and 5.8GB in the end (delta: -5.5GB). Peak memory consumption was 3.0GB. Max. memory is 8.0GB. [2023-12-16 17:54:22,422 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 183.5MB. Free memory is still 134.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 278.08ms. Allocated memory is still 306.2MB. Free memory was 260.0MB in the beginning and 242.1MB in the end (delta: 17.9MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 32.11ms. Allocated memory is still 306.2MB. Free memory was 242.1MB in the beginning and 239.4MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.87ms. Allocated memory is still 306.2MB. Free memory was 239.4MB in the beginning and 235.9MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 565.25ms. Allocated memory is still 306.2MB. Free memory was 235.9MB in the beginning and 263.7MB in the end (delta: -27.8MB). Peak memory consumption was 38.2MB. Max. memory is 8.0GB. * TraceAbstraction took 66751.40ms. Allocated memory was 306.2MB in the beginning and 7.3GB in the end (delta: 7.0GB). Free memory was 263.2MB in the beginning and 5.8GB in the end (delta: -5.5GB). Peak memory consumption was 3.0GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 20]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 20). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 8 procedures, 195 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 66.7s, OverallIterations: 33, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 31.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9023 SdHoareTripleChecker+Valid, 4.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8834 mSDsluCounter, 17020 SdHoareTripleChecker+Invalid, 3.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9224 mSDsCounter, 661 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5945 IncrementalHoareTripleChecker+Invalid, 6606 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 661 mSolverCounterUnsat, 7796 mSDtfsCounter, 5945 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4212 GetRequests, 4126 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80819occurred in iteration=31, InterpolantAutomatonStates: 136, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 23.1s AutomataMinimizationTime, 33 MinimizatonAttempts, 775 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 4221 NumberOfCodeBlocks, 4221 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 4188 ConstructedInterpolants, 0 QuantifiedInterpolants, 7304 SizeOfPredicates, 5 NumberOfNonLiveVariables, 9310 ConjunctsInSsa, 134 ConjunctsInUnsatCore, 33 InterpolantComputations, 33 PerfectInterpolantSequences, 1111/1111 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown