/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.09.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 08:08:25,569 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 08:08:25,640 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 08:08:25,643 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 08:08:25,643 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 08:08:25,666 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 08:08:25,667 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 08:08:25,667 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 08:08:25,667 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 08:08:25,670 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 08:08:25,670 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 08:08:25,671 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 08:08:25,671 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 08:08:25,672 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 08:08:25,672 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 08:08:25,672 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 08:08:25,673 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 08:08:25,673 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 08:08:25,673 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 08:08:25,673 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 08:08:25,673 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 08:08:25,674 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 08:08:25,674 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 08:08:25,674 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 08:08:25,674 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 08:08:25,674 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 08:08:25,674 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 08:08:25,674 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 08:08:25,675 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 08:08:25,675 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 08:08:25,676 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 08:08:25,676 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 08:08:25,676 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 08:08:25,676 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 08:08:25,676 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 08:08:25,676 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 08:08:25,676 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 08:08:25,677 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 08:08:25,677 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 08:08:25,677 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 08:08:25,677 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 08:08:25,677 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 08:08:25,677 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 08:08:25,677 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 08:08:25,678 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 08:08:25,678 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 08:08:25,678 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 08:08:25,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 08:08:25,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 08:08:25,909 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 08:08:25,909 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 08:08:25,910 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 08:08:25,911 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.09.cil-2.c [2023-12-16 08:08:26,904 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 08:08:27,043 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 08:08:27,044 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.09.cil-2.c [2023-12-16 08:08:27,055 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5a9ece42/3b42a866ba314c8cac3142dedc6b66de/FLAGd8955d2b7 [2023-12-16 08:08:27,066 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5a9ece42/3b42a866ba314c8cac3142dedc6b66de [2023-12-16 08:08:27,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 08:08:27,069 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 08:08:27,070 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 08:08:27,070 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 08:08:27,073 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 08:08:27,073 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:08:27" (1/1) ... [2023-12-16 08:08:27,074 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b25c391 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:08:27, skipping insertion in model container [2023-12-16 08:08:27,074 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 08:08:27" (1/1) ... [2023-12-16 08:08:27,127 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 08:08:27,238 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.09.cil-2.c[913,926] [2023-12-16 08:08:27,264 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.09.cil-2.c[5977,5990] [2023-12-16 08:08:27,320 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 08:08:27,348 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 08:08:27,356 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.09.cil-2.c[913,926] [2023-12-16 08:08:27,373 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/pc_sfifo_1.cil-2+token_ring.09.cil-2.c[5977,5990] [2023-12-16 08:08:27,410 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 08:08:27,426 INFO L206 MainTranslator]: Completed translation [2023-12-16 08:08:27,426 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:08:27 WrapperNode [2023-12-16 08:08:27,426 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 08:08:27,427 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 08:08:27,427 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 08:08:27,427 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 08:08:27,431 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:08:27" (1/1) ... [2023-12-16 08:08:27,445 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:08:27" (1/1) ... [2023-12-16 08:08:27,486 INFO L138 Inliner]: procedures = 67, calls = 76, calls flagged for inlining = 40, calls inlined = 40, statements flattened = 873 [2023-12-16 08:08:27,487 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 08:08:27,487 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 08:08:27,487 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 08:08:27,487 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 08:08:27,495 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:08:27" (1/1) ... [2023-12-16 08:08:27,496 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:08:27" (1/1) ... [2023-12-16 08:08:27,500 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:08:27" (1/1) ... [2023-12-16 08:08:27,513 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 08:08:27,514 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:08:27" (1/1) ... [2023-12-16 08:08:27,514 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:08:27" (1/1) ... [2023-12-16 08:08:27,526 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:08:27" (1/1) ... [2023-12-16 08:08:27,536 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:08:27" (1/1) ... [2023-12-16 08:08:27,539 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:08:27" (1/1) ... [2023-12-16 08:08:27,542 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:08:27" (1/1) ... [2023-12-16 08:08:27,546 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 08:08:27,558 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 08:08:27,558 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 08:08:27,558 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 08:08:27,559 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:08:27" (1/1) ... [2023-12-16 08:08:27,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 08:08:27,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 08:08:27,634 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 08:08:27,652 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 08:08:27,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 08:08:27,660 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-12-16 08:08:27,661 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-12-16 08:08:27,661 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify_threads [2023-12-16 08:08:27,661 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify_threads [2023-12-16 08:08:27,661 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread1 [2023-12-16 08:08:27,661 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread1 [2023-12-16 08:08:27,661 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread2 [2023-12-16 08:08:27,661 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread2 [2023-12-16 08:08:27,661 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events2 [2023-12-16 08:08:27,661 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events2 [2023-12-16 08:08:27,661 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads2 [2023-12-16 08:08:27,661 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads2 [2023-12-16 08:08:27,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 08:08:27,662 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels2 [2023-12-16 08:08:27,662 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels2 [2023-12-16 08:08:27,662 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events2 [2023-12-16 08:08:27,662 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events2 [2023-12-16 08:08:27,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 08:08:27,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 08:08:27,663 INFO L130 BoogieDeclarations]: Found specification of procedure error1 [2023-12-16 08:08:27,663 INFO L138 BoogieDeclarations]: Found implementation of procedure error1 [2023-12-16 08:08:27,663 INFO L130 BoogieDeclarations]: Found specification of procedure error2 [2023-12-16 08:08:27,664 INFO L138 BoogieDeclarations]: Found implementation of procedure error2 [2023-12-16 08:08:27,747 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 08:08:27,749 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 08:08:28,378 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 08:08:28,429 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 08:08:28,429 INFO L309 CfgBuilder]: Removed 16 assume(true) statements. [2023-12-16 08:08:28,430 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:08:28 BoogieIcfgContainer [2023-12-16 08:08:28,430 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 08:08:28,432 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 08:08:28,432 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 08:08:28,434 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 08:08:28,435 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 08:08:27" (1/3) ... [2023-12-16 08:08:28,435 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@198ff39a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:08:28, skipping insertion in model container [2023-12-16 08:08:28,435 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 08:08:27" (2/3) ... [2023-12-16 08:08:28,435 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@198ff39a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 08:08:28, skipping insertion in model container [2023-12-16 08:08:28,435 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 08:08:28" (3/3) ... [2023-12-16 08:08:28,436 INFO L112 eAbstractionObserver]: Analyzing ICFG pc_sfifo_1.cil-2+token_ring.09.cil-2.c [2023-12-16 08:08:28,447 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 08:08:28,447 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-12-16 08:08:28,485 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 08:08:28,489 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;@10ff5e5a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 08:08:28,489 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-12-16 08:08:28,494 INFO L276 IsEmpty]: Start isEmpty. Operand has 350 states, 306 states have (on average 1.7189542483660132) internal successors, (526), 313 states have internal predecessors, (526), 31 states have call successors, (31), 10 states have call predecessors, (31), 10 states have return successors, (31), 29 states have call predecessors, (31), 31 states have call successors, (31) [2023-12-16 08:08:28,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-16 08:08:28,505 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:28,505 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] [2023-12-16 08:08:28,506 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:28,509 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:28,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1675024138, now seen corresponding path program 1 times [2023-12-16 08:08:28,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:28,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2003561617] [2023-12-16 08:08:28,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:28,519 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 08:08:28,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:28,522 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 08:08:28,540 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 08:08:28,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:28,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:08:28,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:28,704 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 08:08:28,704 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:08:28,704 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:28,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2003561617] [2023-12-16 08:08:28,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2003561617] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:08:28,705 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:08:28,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:08:28,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742427834] [2023-12-16 08:08:28,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:28,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:08:28,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:28,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:08:28,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:08:28,745 INFO L87 Difference]: Start difference. First operand has 350 states, 306 states have (on average 1.7189542483660132) internal successors, (526), 313 states have internal predecessors, (526), 31 states have call successors, (31), 10 states have call predecessors, (31), 10 states have return successors, (31), 29 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 08:08:28,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:28,899 INFO L93 Difference]: Finished difference Result 733 states and 1231 transitions. [2023-12-16 08:08:28,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:08:28,901 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 37 [2023-12-16 08:08:28,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:28,916 INFO L225 Difference]: With dead ends: 733 [2023-12-16 08:08:28,916 INFO L226 Difference]: Without dead ends: 397 [2023-12-16 08:08:28,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 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 08:08:28,925 INFO L413 NwaCegarLoop]: 517 mSDtfsCounter, 527 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:28,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [527 Valid, 586 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:08:28,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2023-12-16 08:08:28,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 393. [2023-12-16 08:08:28,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 346 states have (on average 1.5809248554913296) internal successors, (547), 350 states have internal predecessors, (547), 35 states have call successors, (35), 12 states have call predecessors, (35), 10 states have return successors, (35), 31 states have call predecessors, (35), 31 states have call successors, (35) [2023-12-16 08:08:28,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 617 transitions. [2023-12-16 08:08:28,996 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 617 transitions. Word has length 37 [2023-12-16 08:08:28,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:28,997 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 617 transitions. [2023-12-16 08:08:28,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 08:08:28,997 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 617 transitions. [2023-12-16 08:08:29,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-16 08:08:29,003 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:29,003 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] [2023-12-16 08:08:29,009 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 08:08:29,206 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 08:08:29,207 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:29,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:29,209 INFO L85 PathProgramCache]: Analyzing trace with hash -1251968860, now seen corresponding path program 1 times [2023-12-16 08:08:29,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:29,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [357630527] [2023-12-16 08:08:29,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:29,211 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 08:08:29,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:29,221 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 08:08:29,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 08:08:29,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:29,309 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:08:29,311 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:29,361 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 08:08:29,361 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:08:29,361 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:29,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [357630527] [2023-12-16 08:08:29,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [357630527] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:08:29,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:08:29,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:08:29,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118119221] [2023-12-16 08:08:29,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:29,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:08:29,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:29,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:08:29,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:08:29,364 INFO L87 Difference]: Start difference. First operand 393 states and 617 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 08:08:29,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:29,463 INFO L93 Difference]: Finished difference Result 593 states and 909 transitions. [2023-12-16 08:08:29,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:08:29,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38 [2023-12-16 08:08:29,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:29,469 INFO L225 Difference]: With dead ends: 593 [2023-12-16 08:08:29,470 INFO L226 Difference]: Without dead ends: 490 [2023-12-16 08:08:29,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 36 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 08:08:29,472 INFO L413 NwaCegarLoop]: 501 mSDtfsCounter, 519 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:29,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 568 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:08:29,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2023-12-16 08:08:29,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 486. [2023-12-16 08:08:29,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 427 states have (on average 1.540983606557377) internal successors, (658), 431 states have internal predecessors, (658), 43 states have call successors, (43), 16 states have call predecessors, (43), 14 states have return successors, (47), 39 states have call predecessors, (47), 39 states have call successors, (47) [2023-12-16 08:08:29,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 748 transitions. [2023-12-16 08:08:29,541 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 748 transitions. Word has length 38 [2023-12-16 08:08:29,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:29,541 INFO L495 AbstractCegarLoop]: Abstraction has 486 states and 748 transitions. [2023-12-16 08:08:29,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 08:08:29,542 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 748 transitions. [2023-12-16 08:08:29,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-16 08:08:29,546 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:29,547 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] [2023-12-16 08:08:29,559 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-16 08:08:29,750 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 08:08:29,751 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:29,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:29,751 INFO L85 PathProgramCache]: Analyzing trace with hash 906822250, now seen corresponding path program 1 times [2023-12-16 08:08:29,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:29,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1193327719] [2023-12-16 08:08:29,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:29,752 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 08:08:29,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:29,753 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 08:08:29,764 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 08:08:29,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:29,831 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:08:29,832 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:29,858 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 08:08:29,858 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:08:29,858 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:29,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1193327719] [2023-12-16 08:08:29,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1193327719] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:08:29,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:08:29,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:08:29,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356536149] [2023-12-16 08:08:29,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:29,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:08:29,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:29,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:08:29,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:08:29,859 INFO L87 Difference]: Start difference. First operand 486 states and 748 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 08:08:29,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:29,953 INFO L93 Difference]: Finished difference Result 838 states and 1245 transitions. [2023-12-16 08:08:29,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:08:29,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 39 [2023-12-16 08:08:29,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:29,959 INFO L225 Difference]: With dead ends: 838 [2023-12-16 08:08:29,959 INFO L226 Difference]: Without dead ends: 642 [2023-12-16 08:08:29,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 37 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 08:08:29,962 INFO L413 NwaCegarLoop]: 523 mSDtfsCounter, 58 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 1004 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:29,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 1004 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:08:29,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2023-12-16 08:08:29,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 591. [2023-12-16 08:08:29,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 520 states have (on average 1.5134615384615384) internal successors, (787), 526 states have internal predecessors, (787), 49 states have call successors, (49), 22 states have call predecessors, (49), 20 states have return successors, (55), 43 states have call predecessors, (55), 45 states have call successors, (55) [2023-12-16 08:08:29,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 891 transitions. [2023-12-16 08:08:29,996 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 891 transitions. Word has length 39 [2023-12-16 08:08:29,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:29,996 INFO L495 AbstractCegarLoop]: Abstraction has 591 states and 891 transitions. [2023-12-16 08:08:29,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-16 08:08:29,996 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 891 transitions. [2023-12-16 08:08:29,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-16 08:08:29,997 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:29,998 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 08:08:30,011 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 08:08:30,201 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 08:08:30,202 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:30,203 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:30,203 INFO L85 PathProgramCache]: Analyzing trace with hash 108220691, now seen corresponding path program 1 times [2023-12-16 08:08:30,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:30,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2017321480] [2023-12-16 08:08:30,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:30,204 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 08:08:30,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:30,212 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 08:08:30,213 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 08:08:30,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:30,316 INFO L262 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:08:30,318 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:30,338 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:08:30,339 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:08:30,339 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:30,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2017321480] [2023-12-16 08:08:30,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2017321480] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:08:30,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:08:30,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:08:30,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961480115] [2023-12-16 08:08:30,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:30,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:08:30,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:30,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:08:30,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:08:30,340 INFO L87 Difference]: Start difference. First operand 591 states and 891 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 08:08:30,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:30,424 INFO L93 Difference]: Finished difference Result 1043 states and 1528 transitions. [2023-12-16 08:08:30,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:08:30,424 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 54 [2023-12-16 08:08:30,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:30,427 INFO L225 Difference]: With dead ends: 1043 [2023-12-16 08:08:30,427 INFO L226 Difference]: Without dead ends: 742 [2023-12-16 08:08:30,428 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 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 08:08:30,428 INFO L413 NwaCegarLoop]: 551 mSDtfsCounter, 46 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 1045 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:30,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 1045 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:08:30,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2023-12-16 08:08:30,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 742. [2023-12-16 08:08:30,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 649 states have (on average 1.4576271186440677) internal successors, (946), 655 states have internal predecessors, (946), 63 states have call successors, (63), 30 states have call predecessors, (63), 28 states have return successors, (77), 57 states have call predecessors, (77), 59 states have call successors, (77) [2023-12-16 08:08:30,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1086 transitions. [2023-12-16 08:08:30,455 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1086 transitions. Word has length 54 [2023-12-16 08:08:30,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:30,455 INFO L495 AbstractCegarLoop]: Abstraction has 742 states and 1086 transitions. [2023-12-16 08:08:30,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 08:08:30,455 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1086 transitions. [2023-12-16 08:08:30,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-16 08:08:30,456 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:30,456 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 08:08:30,466 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 08:08:30,660 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 08:08:30,660 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:30,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:30,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1111684561, now seen corresponding path program 1 times [2023-12-16 08:08:30,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:30,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [250826655] [2023-12-16 08:08:30,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:30,661 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:08:30,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:30,662 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 08:08:30,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-16 08:08:30,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:30,750 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:08:30,752 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:30,776 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-12-16 08:08:30,777 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:08:30,777 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:30,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [250826655] [2023-12-16 08:08:30,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [250826655] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:08:30,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:08:30,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:08:30,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193166268] [2023-12-16 08:08:30,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:30,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:08:30,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:30,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:08:30,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:08:30,778 INFO L87 Difference]: Start difference. First operand 742 states and 1086 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-16 08:08:30,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:30,912 INFO L93 Difference]: Finished difference Result 1227 states and 1745 transitions. [2023-12-16 08:08:30,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:08:30,912 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 59 [2023-12-16 08:08:30,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:30,915 INFO L225 Difference]: With dead ends: 1227 [2023-12-16 08:08:30,915 INFO L226 Difference]: Without dead ends: 855 [2023-12-16 08:08:30,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 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 08:08:30,916 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 506 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:30,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [506 Valid, 572 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:08:30,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2023-12-16 08:08:30,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 855. [2023-12-16 08:08:30,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 748 states have (on average 1.4224598930481283) internal successors, (1064), 754 states have internal predecessors, (1064), 71 states have call successors, (71), 36 states have call predecessors, (71), 34 states have return successors, (89), 65 states have call predecessors, (89), 67 states have call successors, (89) [2023-12-16 08:08:30,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1224 transitions. [2023-12-16 08:08:30,949 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1224 transitions. Word has length 59 [2023-12-16 08:08:30,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:30,949 INFO L495 AbstractCegarLoop]: Abstraction has 855 states and 1224 transitions. [2023-12-16 08:08:30,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-16 08:08:30,949 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1224 transitions. [2023-12-16 08:08:30,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-16 08:08:30,952 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:30,952 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 08:08:30,972 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 08:08:31,154 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 08:08:31,155 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:31,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:31,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1225729732, now seen corresponding path program 1 times [2023-12-16 08:08:31,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:31,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [214416618] [2023-12-16 08:08:31,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:31,160 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:08:31,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:31,161 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 08:08:31,162 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 08:08:31,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:31,232 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:08:31,233 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:31,283 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-16 08:08:31,284 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:08:31,284 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:31,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [214416618] [2023-12-16 08:08:31,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [214416618] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:08:31,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:08:31,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:08:31,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017514092] [2023-12-16 08:08:31,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:31,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:08:31,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:31,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:08:31,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:08:31,285 INFO L87 Difference]: Start difference. First operand 855 states and 1224 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-16 08:08:31,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:31,396 INFO L93 Difference]: Finished difference Result 1354 states and 1913 transitions. [2023-12-16 08:08:31,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:08:31,397 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 60 [2023-12-16 08:08:31,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:31,399 INFO L225 Difference]: With dead ends: 1354 [2023-12-16 08:08:31,399 INFO L226 Difference]: Without dead ends: 916 [2023-12-16 08:08:31,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 57 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 08:08:31,401 INFO L413 NwaCegarLoop]: 502 mSDtfsCounter, 11 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1501 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:31,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1501 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:08:31,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916 states. [2023-12-16 08:08:31,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916 to 886. [2023-12-16 08:08:31,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 886 states, 777 states have (on average 1.4066924066924067) internal successors, (1093), 785 states have internal predecessors, (1093), 71 states have call successors, (71), 36 states have call predecessors, (71), 36 states have return successors, (91), 65 states have call predecessors, (91), 67 states have call successors, (91) [2023-12-16 08:08:31,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1255 transitions. [2023-12-16 08:08:31,435 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1255 transitions. Word has length 60 [2023-12-16 08:08:31,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:31,436 INFO L495 AbstractCegarLoop]: Abstraction has 886 states and 1255 transitions. [2023-12-16 08:08:31,436 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-16 08:08:31,436 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1255 transitions. [2023-12-16 08:08:31,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-16 08:08:31,437 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:31,437 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 08:08:31,441 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 08:08:31,654 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 08:08:31,655 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:31,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:31,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1811569796, now seen corresponding path program 1 times [2023-12-16 08:08:31,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:31,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1084956617] [2023-12-16 08:08:31,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:31,657 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 08:08:31,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:31,658 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 08:08:31,708 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 08:08:31,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:31,769 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:08:31,772 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:31,786 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 08:08:31,786 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:08:31,786 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:31,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1084956617] [2023-12-16 08:08:31,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1084956617] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:08:31,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:08:31,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:08:31,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858644427] [2023-12-16 08:08:31,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:31,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:08:31,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:31,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:08:31,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:08:31,788 INFO L87 Difference]: Start difference. First operand 886 states and 1255 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-16 08:08:31,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:31,890 INFO L93 Difference]: Finished difference Result 1303 states and 1824 transitions. [2023-12-16 08:08:31,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:08:31,890 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 60 [2023-12-16 08:08:31,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:31,893 INFO L225 Difference]: With dead ends: 1303 [2023-12-16 08:08:31,893 INFO L226 Difference]: Without dead ends: 793 [2023-12-16 08:08:31,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 57 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 08:08:31,895 INFO L413 NwaCegarLoop]: 502 mSDtfsCounter, 2 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1501 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:31,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1501 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:08:31,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 793 states. [2023-12-16 08:08:31,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 793 to 787. [2023-12-16 08:08:31,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 787 states, 692 states have (on average 1.4132947976878614) internal successors, (978), 702 states have internal predecessors, (978), 61 states have call successors, (61), 30 states have call predecessors, (61), 32 states have return successors, (77), 55 states have call predecessors, (77), 57 states have call successors, (77) [2023-12-16 08:08:31,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 787 states to 787 states and 1116 transitions. [2023-12-16 08:08:31,928 INFO L78 Accepts]: Start accepts. Automaton has 787 states and 1116 transitions. Word has length 60 [2023-12-16 08:08:31,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:31,930 INFO L495 AbstractCegarLoop]: Abstraction has 787 states and 1116 transitions. [2023-12-16 08:08:31,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-16 08:08:31,930 INFO L276 IsEmpty]: Start isEmpty. Operand 787 states and 1116 transitions. [2023-12-16 08:08:31,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-16 08:08:31,931 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:31,931 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 08:08:31,938 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 08:08:32,135 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 08:08:32,136 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:32,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:32,140 INFO L85 PathProgramCache]: Analyzing trace with hash -13930180, now seen corresponding path program 1 times [2023-12-16 08:08:32,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:32,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [17157999] [2023-12-16 08:08:32,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:32,141 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 08:08:32,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:32,142 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 08:08:32,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-12-16 08:08:32,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:32,218 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:08:32,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:32,237 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-16 08:08:32,237 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:08:32,237 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:32,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [17157999] [2023-12-16 08:08:32,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [17157999] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:08:32,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:08:32,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:08:32,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9004331] [2023-12-16 08:08:32,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:32,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:08:32,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:32,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:08:32,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:08:32,239 INFO L87 Difference]: Start difference. First operand 787 states and 1116 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-16 08:08:32,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:32,325 INFO L93 Difference]: Finished difference Result 1196 states and 1659 transitions. [2023-12-16 08:08:32,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:08:32,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 60 [2023-12-16 08:08:32,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:32,327 INFO L225 Difference]: With dead ends: 1196 [2023-12-16 08:08:32,328 INFO L226 Difference]: Without dead ends: 785 [2023-12-16 08:08:32,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 58 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 08:08:32,329 INFO L413 NwaCegarLoop]: 542 mSDtfsCounter, 66 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 1019 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:32,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 1019 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:08:32,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2023-12-16 08:08:32,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 747. [2023-12-16 08:08:32,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 747 states, 658 states have (on average 1.4012158054711246) internal successors, (922), 668 states have internal predecessors, (922), 57 states have call successors, (57), 28 states have call predecessors, (57), 30 states have return successors, (71), 51 states have call predecessors, (71), 53 states have call successors, (71) [2023-12-16 08:08:32,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 1050 transitions. [2023-12-16 08:08:32,353 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 1050 transitions. Word has length 60 [2023-12-16 08:08:32,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:32,353 INFO L495 AbstractCegarLoop]: Abstraction has 747 states and 1050 transitions. [2023-12-16 08:08:32,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-16 08:08:32,353 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 1050 transitions. [2023-12-16 08:08:32,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-16 08:08:32,354 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:32,354 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 08:08:32,371 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 (9)] Ended with exit code 0 [2023-12-16 08:08:32,558 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 08:08:32,558 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:32,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:32,559 INFO L85 PathProgramCache]: Analyzing trace with hash 798328061, now seen corresponding path program 1 times [2023-12-16 08:08:32,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:32,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1162616059] [2023-12-16 08:08:32,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:32,559 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:08:32,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:32,560 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 08:08:32,566 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 08:08:32,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:32,641 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:08:32,665 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:32,738 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:08:32,738 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 08:08:32,770 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-16 08:08:32,770 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:32,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1162616059] [2023-12-16 08:08:32,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1162616059] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 08:08:32,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 08:08:32,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2023-12-16 08:08:32,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218595317] [2023-12-16 08:08:32,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:32,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:08:32,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:32,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:08:32,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:08:32,771 INFO L87 Difference]: Start difference. First operand 747 states and 1050 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 08:08:32,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:32,944 INFO L93 Difference]: Finished difference Result 792 states and 1105 transitions. [2023-12-16 08:08:32,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:08:32,945 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 60 [2023-12-16 08:08:32,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:32,947 INFO L225 Difference]: With dead ends: 792 [2023-12-16 08:08:32,947 INFO L226 Difference]: Without dead ends: 789 [2023-12-16 08:08:32,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 117 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 08:08:32,948 INFO L413 NwaCegarLoop]: 516 mSDtfsCounter, 975 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 975 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:32,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [975 Valid, 569 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:08:32,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2023-12-16 08:08:32,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 746. [2023-12-16 08:08:32,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 746 states, 658 states have (on average 1.3981762917933132) internal successors, (920), 667 states have internal predecessors, (920), 56 states have call successors, (56), 28 states have call predecessors, (56), 30 states have return successors, (71), 51 states have call predecessors, (71), 53 states have call successors, (71) [2023-12-16 08:08:32,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 1047 transitions. [2023-12-16 08:08:32,977 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 1047 transitions. Word has length 60 [2023-12-16 08:08:32,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:32,978 INFO L495 AbstractCegarLoop]: Abstraction has 746 states and 1047 transitions. [2023-12-16 08:08:32,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 4 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-12-16 08:08:32,978 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 1047 transitions. [2023-12-16 08:08:32,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-16 08:08:32,979 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:32,979 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 08:08:32,990 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 08:08:33,182 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 08:08:33,183 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:33,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:33,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1022844272, now seen corresponding path program 1 times [2023-12-16 08:08:33,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:33,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1265989873] [2023-12-16 08:08:33,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:33,184 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 08:08:33,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:33,185 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 08:08:33,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-12-16 08:08:33,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:33,276 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 08:08:33,278 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:33,439 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:08:33,439 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 08:08:33,500 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-16 08:08:33,501 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:33,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1265989873] [2023-12-16 08:08:33,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1265989873] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 08:08:33,501 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 08:08:33,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 7 [2023-12-16 08:08:33,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [53228657] [2023-12-16 08:08:33,501 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 08:08:33,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-16 08:08:33,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:33,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-16 08:08:33,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-16 08:08:33,502 INFO L87 Difference]: Start difference. First operand 746 states and 1047 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 6 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-12-16 08:08:33,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:33,841 INFO L93 Difference]: Finished difference Result 1337 states and 1800 transitions. [2023-12-16 08:08:33,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 08:08:33,841 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 6 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 61 [2023-12-16 08:08:33,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:33,845 INFO L225 Difference]: With dead ends: 1337 [2023-12-16 08:08:33,845 INFO L226 Difference]: Without dead ends: 1334 [2023-12-16 08:08:33,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-12-16 08:08:33,856 INFO L413 NwaCegarLoop]: 571 mSDtfsCounter, 1122 mSDsluCounter, 1130 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1122 SdHoareTripleChecker+Valid, 1701 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:33,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1122 Valid, 1701 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 323 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 08:08:33,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1334 states. [2023-12-16 08:08:33,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1334 to 1039. [2023-12-16 08:08:33,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1039 states, 915 states have (on average 1.3595628415300547) internal successors, (1244), 930 states have internal predecessors, (1244), 75 states have call successors, (75), 41 states have call predecessors, (75), 47 states have return successors, (102), 68 states have call predecessors, (102), 72 states have call successors, (102) [2023-12-16 08:08:33,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1421 transitions. [2023-12-16 08:08:33,911 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1421 transitions. Word has length 61 [2023-12-16 08:08:33,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:33,911 INFO L495 AbstractCegarLoop]: Abstraction has 1039 states and 1421 transitions. [2023-12-16 08:08:33,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 7 states have internal predecessors, (98), 6 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2023-12-16 08:08:33,912 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1421 transitions. [2023-12-16 08:08:33,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-16 08:08:33,913 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:33,913 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-12-16 08:08:33,937 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 08:08:34,117 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 08:08:34,118 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:34,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:34,119 INFO L85 PathProgramCache]: Analyzing trace with hash 980123641, now seen corresponding path program 2 times [2023-12-16 08:08:34,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:34,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [616224923] [2023-12-16 08:08:34,119 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-12-16 08:08:34,119 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:08:34,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:34,121 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 08:08:34,153 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 08:08:34,208 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-12-16 08:08:34,208 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-12-16 08:08:34,210 INFO L262 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:08:34,212 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:34,230 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-12-16 08:08:34,230 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:08:34,230 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:34,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [616224923] [2023-12-16 08:08:34,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [616224923] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:08:34,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:08:34,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:08:34,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698946821] [2023-12-16 08:08:34,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:34,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:08:34,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:34,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:08:34,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:08:34,232 INFO L87 Difference]: Start difference. First operand 1039 states and 1421 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-12-16 08:08:34,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:34,316 INFO L93 Difference]: Finished difference Result 1562 states and 2092 transitions. [2023-12-16 08:08:34,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:08:34,316 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 78 [2023-12-16 08:08:34,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:34,319 INFO L225 Difference]: With dead ends: 1562 [2023-12-16 08:08:34,319 INFO L226 Difference]: Without dead ends: 981 [2023-12-16 08:08:34,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 76 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 08:08:34,320 INFO L413 NwaCegarLoop]: 526 mSDtfsCounter, 506 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:34,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [506 Valid, 587 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:08:34,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states. [2023-12-16 08:08:34,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 975. [2023-12-16 08:08:34,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 975 states, 858 states have (on average 1.3566433566433567) internal successors, (1164), 873 states have internal predecessors, (1164), 72 states have call successors, (72), 38 states have call predecessors, (72), 43 states have return successors, (97), 64 states have call predecessors, (97), 69 states have call successors, (97) [2023-12-16 08:08:34,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 975 states to 975 states and 1333 transitions. [2023-12-16 08:08:34,357 INFO L78 Accepts]: Start accepts. Automaton has 975 states and 1333 transitions. Word has length 78 [2023-12-16 08:08:34,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:34,357 INFO L495 AbstractCegarLoop]: Abstraction has 975 states and 1333 transitions. [2023-12-16 08:08:34,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-12-16 08:08:34,357 INFO L276 IsEmpty]: Start isEmpty. Operand 975 states and 1333 transitions. [2023-12-16 08:08:34,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-16 08:08:34,359 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:34,359 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-12-16 08:08:34,364 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 08:08:34,562 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 08:08:34,562 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:34,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:34,563 INFO L85 PathProgramCache]: Analyzing trace with hash 324762393, now seen corresponding path program 1 times [2023-12-16 08:08:34,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:34,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1419148393] [2023-12-16 08:08:34,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:34,563 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:08:34,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:34,564 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 08:08:34,594 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 08:08:34,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:34,640 INFO L262 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:08:34,641 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:34,681 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 08:08:34,682 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:08:34,682 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:34,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1419148393] [2023-12-16 08:08:34,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1419148393] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:08:34,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:08:34,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:08:34,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110414409] [2023-12-16 08:08:34,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:34,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:08:34,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:34,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:08:34,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:08:34,683 INFO L87 Difference]: Start difference. First operand 975 states and 1333 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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 08:08:35,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:35,153 INFO L93 Difference]: Finished difference Result 1693 states and 2244 transitions. [2023-12-16 08:08:35,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:08:35,153 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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 92 [2023-12-16 08:08:35,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:35,157 INFO L225 Difference]: With dead ends: 1693 [2023-12-16 08:08:35,157 INFO L226 Difference]: Without dead ends: 1008 [2023-12-16 08:08:35,159 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 89 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 08:08:35,159 INFO L413 NwaCegarLoop]: 294 mSDtfsCounter, 699 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 722 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:35,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [722 Valid, 581 Invalid, 384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:08:35,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2023-12-16 08:08:35,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 975. [2023-12-16 08:08:35,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 975 states, 858 states have (on average 1.3391608391608392) internal successors, (1149), 873 states have internal predecessors, (1149), 72 states have call successors, (72), 38 states have call predecessors, (72), 43 states have return successors, (96), 64 states have call predecessors, (96), 69 states have call successors, (96) [2023-12-16 08:08:35,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 975 states to 975 states and 1317 transitions. [2023-12-16 08:08:35,199 INFO L78 Accepts]: Start accepts. Automaton has 975 states and 1317 transitions. Word has length 92 [2023-12-16 08:08:35,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:35,200 INFO L495 AbstractCegarLoop]: Abstraction has 975 states and 1317 transitions. [2023-12-16 08:08:35,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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 08:08:35,200 INFO L276 IsEmpty]: Start isEmpty. Operand 975 states and 1317 transitions. [2023-12-16 08:08:35,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-16 08:08:35,201 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:35,201 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 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 08:08:35,219 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 (13)] Ended with exit code 0 [2023-12-16 08:08:35,404 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 08:08:35,405 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting error1Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:35,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:35,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1478692324, now seen corresponding path program 1 times [2023-12-16 08:08:35,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:35,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [871517104] [2023-12-16 08:08:35,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:35,406 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 08:08:35,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:35,414 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 08:08:35,415 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 08:08:35,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:35,496 INFO L262 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:08:35,497 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:35,511 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-12-16 08:08:35,511 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:08:35,511 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:35,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [871517104] [2023-12-16 08:08:35,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [871517104] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:08:35,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:08:35,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:08:35,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357552311] [2023-12-16 08:08:35,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:35,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:08:35,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:35,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:08:35,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:08:35,513 INFO L87 Difference]: Start difference. First operand 975 states and 1317 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-12-16 08:08:35,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:35,597 INFO L93 Difference]: Finished difference Result 1256 states and 1661 transitions. [2023-12-16 08:08:35,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:08:35,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 93 [2023-12-16 08:08:35,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:35,599 INFO L225 Difference]: With dead ends: 1256 [2023-12-16 08:08:35,599 INFO L226 Difference]: Without dead ends: 285 [2023-12-16 08:08:35,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 91 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 08:08:35,601 INFO L413 NwaCegarLoop]: 534 mSDtfsCounter, 49 mSDsluCounter, 479 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:35,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 1013 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:08:35,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2023-12-16 08:08:35,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2023-12-16 08:08:35,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 253 states have (on average 1.6284584980237153) internal successors, (412), 255 states have internal predecessors, (412), 25 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-12-16 08:08:35,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 460 transitions. [2023-12-16 08:08:35,613 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 460 transitions. Word has length 93 [2023-12-16 08:08:35,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:35,613 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 460 transitions. [2023-12-16 08:08:35,613 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-12-16 08:08:35,613 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 460 transitions. [2023-12-16 08:08:35,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-16 08:08:35,614 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:35,614 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:08:35,632 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 08:08:35,817 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 08:08:35,818 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:35,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:35,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1062734095, now seen corresponding path program 1 times [2023-12-16 08:08:35,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:35,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [49744015] [2023-12-16 08:08:35,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:35,819 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 08:08:35,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:35,820 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 08:08:35,852 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 08:08:35,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:35,934 INFO L262 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:08:35,936 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:35,949 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 08:08:35,949 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:08:35,949 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:35,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [49744015] [2023-12-16 08:08:35,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [49744015] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:08:35,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:08:35,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:08:35,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997815925] [2023-12-16 08:08:35,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:35,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:08:35,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:35,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:08:35,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:08:35,950 INFO L87 Difference]: Start difference. First operand 285 states and 460 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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 08:08:35,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:35,997 INFO L93 Difference]: Finished difference Result 561 states and 905 transitions. [2023-12-16 08:08:35,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:08:35,998 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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 132 [2023-12-16 08:08:35,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:35,999 INFO L225 Difference]: With dead ends: 561 [2023-12-16 08:08:35,999 INFO L226 Difference]: Without dead ends: 285 [2023-12-16 08:08:35,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 130 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 08:08:36,000 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 449 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:36,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 423 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:08:36,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2023-12-16 08:08:36,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 285. [2023-12-16 08:08:36,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 253 states have (on average 1.6245059288537549) internal successors, (411), 255 states have internal predecessors, (411), 25 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2023-12-16 08:08:36,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 459 transitions. [2023-12-16 08:08:36,010 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 459 transitions. Word has length 132 [2023-12-16 08:08:36,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:36,010 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 459 transitions. [2023-12-16 08:08:36,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 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 08:08:36,010 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 459 transitions. [2023-12-16 08:08:36,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-16 08:08:36,011 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:36,011 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:08:36,018 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 08:08:36,215 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 08:08:36,216 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:36,216 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:36,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1181824303, now seen corresponding path program 1 times [2023-12-16 08:08:36,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:36,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [256936348] [2023-12-16 08:08:36,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:36,217 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 08:08:36,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:36,218 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 08:08:36,225 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 08:08:36,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:36,341 INFO L262 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:08:36,343 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:36,422 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 08:08:36,422 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:08:36,422 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:36,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [256936348] [2023-12-16 08:08:36,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [256936348] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:08:36,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:08:36,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:08:36,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859959348] [2023-12-16 08:08:36,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:36,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:08:36,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:36,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:08:36,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:08:36,424 INFO L87 Difference]: Start difference. First operand 285 states and 459 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 3 states have internal predecessors, (121), 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 08:08:36,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:36,917 INFO L93 Difference]: Finished difference Result 860 states and 1398 transitions. [2023-12-16 08:08:36,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:08:36,918 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 3 states have internal predecessors, (121), 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 132 [2023-12-16 08:08:36,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:36,921 INFO L225 Difference]: With dead ends: 860 [2023-12-16 08:08:36,921 INFO L226 Difference]: Without dead ends: 591 [2023-12-16 08:08:36,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 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 08:08:36,923 INFO L413 NwaCegarLoop]: 337 mSDtfsCounter, 864 mSDsluCounter, 846 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 881 SdHoareTripleChecker+Valid, 1183 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:36,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [881 Valid, 1183 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 08:08:36,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2023-12-16 08:08:36,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 566. [2023-12-16 08:08:36,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 509 states have (on average 1.6345776031434185) internal successors, (832), 512 states have internal predecessors, (832), 43 states have call successors, (43), 13 states have call predecessors, (43), 13 states have return successors, (42), 41 states have call predecessors, (42), 41 states have call successors, (42) [2023-12-16 08:08:36,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 917 transitions. [2023-12-16 08:08:36,949 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 917 transitions. Word has length 132 [2023-12-16 08:08:36,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:36,949 INFO L495 AbstractCegarLoop]: Abstraction has 566 states and 917 transitions. [2023-12-16 08:08:36,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 3 states have internal predecessors, (121), 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 08:08:36,950 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 917 transitions. [2023-12-16 08:08:36,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-16 08:08:36,950 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:36,950 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:08:36,959 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 08:08:37,155 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 08:08:37,156 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:37,156 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:37,156 INFO L85 PathProgramCache]: Analyzing trace with hash -209297331, now seen corresponding path program 1 times [2023-12-16 08:08:37,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:37,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [34310627] [2023-12-16 08:08:37,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:37,157 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 08:08:37,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:37,173 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 08:08:37,222 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 08:08:37,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:37,306 INFO L262 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:08:37,309 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:37,355 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 08:08:37,355 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:08:37,355 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:37,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [34310627] [2023-12-16 08:08:37,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [34310627] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:08:37,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:08:37,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:08:37,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318398282] [2023-12-16 08:08:37,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:37,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:08:37,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:37,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:08:37,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:08:37,357 INFO L87 Difference]: Start difference. First operand 566 states and 917 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:37,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:37,680 INFO L93 Difference]: Finished difference Result 1116 states and 1814 transitions. [2023-12-16 08:08:37,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:08:37,692 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 132 [2023-12-16 08:08:37,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:37,696 INFO L225 Difference]: With dead ends: 1116 [2023-12-16 08:08:37,697 INFO L226 Difference]: Without dead ends: 566 [2023-12-16 08:08:37,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 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 08:08:37,700 INFO L413 NwaCegarLoop]: 289 mSDtfsCounter, 611 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:37,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [628 Valid, 741 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:08:37,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2023-12-16 08:08:37,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 566. [2023-12-16 08:08:37,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 509 states have (on average 1.6208251473477406) internal successors, (825), 512 states have internal predecessors, (825), 43 states have call successors, (43), 13 states have call predecessors, (43), 13 states have return successors, (42), 41 states have call predecessors, (42), 41 states have call successors, (42) [2023-12-16 08:08:37,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 910 transitions. [2023-12-16 08:08:37,721 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 910 transitions. Word has length 132 [2023-12-16 08:08:37,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:37,721 INFO L495 AbstractCegarLoop]: Abstraction has 566 states and 910 transitions. [2023-12-16 08:08:37,721 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:37,721 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 910 transitions. [2023-12-16 08:08:37,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-16 08:08:37,722 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:37,722 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:08:37,729 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 (17)] Ended with exit code 0 [2023-12-16 08:08:37,926 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 08:08:37,927 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:37,927 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:37,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1517847631, now seen corresponding path program 1 times [2023-12-16 08:08:37,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:37,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1443594133] [2023-12-16 08:08:37,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:37,928 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:08:37,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:37,930 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 08:08:37,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-12-16 08:08:38,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:38,046 INFO L262 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:08:38,049 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:38,114 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 08:08:38,115 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:08:38,115 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:38,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1443594133] [2023-12-16 08:08:38,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1443594133] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:08:38,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:08:38,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:08:38,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812578893] [2023-12-16 08:08:38,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:38,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:08:38,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:38,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:08:38,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:08:38,117 INFO L87 Difference]: Start difference. First operand 566 states and 910 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:38,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:38,474 INFO L93 Difference]: Finished difference Result 1116 states and 1800 transitions. [2023-12-16 08:08:38,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:08:38,475 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 132 [2023-12-16 08:08:38,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:38,478 INFO L225 Difference]: With dead ends: 1116 [2023-12-16 08:08:38,478 INFO L226 Difference]: Without dead ends: 566 [2023-12-16 08:08:38,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 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 08:08:38,480 INFO L413 NwaCegarLoop]: 286 mSDtfsCounter, 605 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:38,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 734 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:08:38,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2023-12-16 08:08:38,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 566. [2023-12-16 08:08:38,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 509 states have (on average 1.6070726915520628) internal successors, (818), 512 states have internal predecessors, (818), 43 states have call successors, (43), 13 states have call predecessors, (43), 13 states have return successors, (42), 41 states have call predecessors, (42), 41 states have call successors, (42) [2023-12-16 08:08:38,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 903 transitions. [2023-12-16 08:08:38,503 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 903 transitions. Word has length 132 [2023-12-16 08:08:38,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:38,503 INFO L495 AbstractCegarLoop]: Abstraction has 566 states and 903 transitions. [2023-12-16 08:08:38,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:38,503 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 903 transitions. [2023-12-16 08:08:38,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-16 08:08:38,504 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:38,504 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:08:38,525 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 08:08:38,709 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 08:08:38,710 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:38,711 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:38,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1594837195, now seen corresponding path program 1 times [2023-12-16 08:08:38,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:38,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1946973292] [2023-12-16 08:08:38,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:38,711 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 08:08:38,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:38,713 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 08:08:38,714 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 08:08:38,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:38,825 INFO L262 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:08:38,827 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:38,876 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 08:08:38,876 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:08:38,876 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:38,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1946973292] [2023-12-16 08:08:38,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1946973292] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:08:38,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:08:38,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:08:38,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676721910] [2023-12-16 08:08:38,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:38,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:08:38,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:38,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:08:38,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:08:38,880 INFO L87 Difference]: Start difference. First operand 566 states and 903 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:39,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:39,205 INFO L93 Difference]: Finished difference Result 1116 states and 1786 transitions. [2023-12-16 08:08:39,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:08:39,205 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 132 [2023-12-16 08:08:39,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:39,207 INFO L225 Difference]: With dead ends: 1116 [2023-12-16 08:08:39,207 INFO L226 Difference]: Without dead ends: 566 [2023-12-16 08:08:39,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 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 08:08:39,209 INFO L413 NwaCegarLoop]: 283 mSDtfsCounter, 599 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 727 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:39,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [616 Valid, 727 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:08:39,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2023-12-16 08:08:39,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 566. [2023-12-16 08:08:39,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 509 states have (on average 1.5933202357563852) internal successors, (811), 512 states have internal predecessors, (811), 43 states have call successors, (43), 13 states have call predecessors, (43), 13 states have return successors, (42), 41 states have call predecessors, (42), 41 states have call successors, (42) [2023-12-16 08:08:39,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 896 transitions. [2023-12-16 08:08:39,231 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 896 transitions. Word has length 132 [2023-12-16 08:08:39,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:39,231 INFO L495 AbstractCegarLoop]: Abstraction has 566 states and 896 transitions. [2023-12-16 08:08:39,231 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:39,231 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 896 transitions. [2023-12-16 08:08:39,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-16 08:08:39,232 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:39,232 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:08:39,237 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-12-16 08:08:39,437 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 08:08:39,437 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:39,438 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:39,438 INFO L85 PathProgramCache]: Analyzing trace with hash -896531249, now seen corresponding path program 1 times [2023-12-16 08:08:39,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:39,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [937176131] [2023-12-16 08:08:39,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:39,438 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:08:39,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:39,440 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 08:08:39,442 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 08:08:39,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:39,598 INFO L262 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:08:39,600 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:39,663 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 08:08:39,663 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:08:39,663 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:39,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [937176131] [2023-12-16 08:08:39,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [937176131] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:08:39,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:08:39,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:08:39,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849242391] [2023-12-16 08:08:39,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:39,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:08:39,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:39,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:08:39,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:08:39,666 INFO L87 Difference]: Start difference. First operand 566 states and 896 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:40,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:40,015 INFO L93 Difference]: Finished difference Result 1116 states and 1772 transitions. [2023-12-16 08:08:40,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:08:40,020 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 132 [2023-12-16 08:08:40,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:40,023 INFO L225 Difference]: With dead ends: 1116 [2023-12-16 08:08:40,023 INFO L226 Difference]: Without dead ends: 566 [2023-12-16 08:08:40,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 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 08:08:40,025 INFO L413 NwaCegarLoop]: 280 mSDtfsCounter, 593 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 610 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:40,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [610 Valid, 720 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:08:40,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2023-12-16 08:08:40,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 566. [2023-12-16 08:08:40,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 509 states have (on average 1.5795677799607073) internal successors, (804), 512 states have internal predecessors, (804), 43 states have call successors, (43), 13 states have call predecessors, (43), 13 states have return successors, (42), 41 states have call predecessors, (42), 41 states have call successors, (42) [2023-12-16 08:08:40,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 889 transitions. [2023-12-16 08:08:40,056 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 889 transitions. Word has length 132 [2023-12-16 08:08:40,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:40,056 INFO L495 AbstractCegarLoop]: Abstraction has 566 states and 889 transitions. [2023-12-16 08:08:40,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:40,057 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 889 transitions. [2023-12-16 08:08:40,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-16 08:08:40,057 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:40,057 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:08:40,064 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2023-12-16 08:08:40,261 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 08:08:40,262 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:40,262 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:40,262 INFO L85 PathProgramCache]: Analyzing trace with hash -976897973, now seen corresponding path program 1 times [2023-12-16 08:08:40,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:40,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1518879824] [2023-12-16 08:08:40,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:40,263 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 08:08:40,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:40,264 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 08:08:40,266 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-16 08:08:40,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:40,375 INFO L262 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:08:40,377 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:40,425 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 08:08:40,425 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:08:40,425 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:40,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1518879824] [2023-12-16 08:08:40,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1518879824] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:08:40,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:08:40,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:08:40,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916786821] [2023-12-16 08:08:40,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:40,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:08:40,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:40,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:08:40,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:08:40,427 INFO L87 Difference]: Start difference. First operand 566 states and 889 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:40,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:40,741 INFO L93 Difference]: Finished difference Result 1116 states and 1758 transitions. [2023-12-16 08:08:40,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:08:40,741 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 132 [2023-12-16 08:08:40,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:40,743 INFO L225 Difference]: With dead ends: 1116 [2023-12-16 08:08:40,743 INFO L226 Difference]: Without dead ends: 566 [2023-12-16 08:08:40,745 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 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 08:08:40,745 INFO L413 NwaCegarLoop]: 277 mSDtfsCounter, 587 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 604 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:40,745 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [604 Valid, 713 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:08:40,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2023-12-16 08:08:40,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 566. [2023-12-16 08:08:40,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 509 states have (on average 1.5658153241650294) internal successors, (797), 512 states have internal predecessors, (797), 43 states have call successors, (43), 13 states have call predecessors, (43), 13 states have return successors, (42), 41 states have call predecessors, (42), 41 states have call successors, (42) [2023-12-16 08:08:40,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 882 transitions. [2023-12-16 08:08:40,770 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 882 transitions. Word has length 132 [2023-12-16 08:08:40,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:40,770 INFO L495 AbstractCegarLoop]: Abstraction has 566 states and 882 transitions. [2023-12-16 08:08:40,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:40,770 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 882 transitions. [2023-12-16 08:08:40,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-16 08:08:40,771 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:40,771 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:08:40,796 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2023-12-16 08:08:40,975 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 08:08:40,976 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:40,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:40,976 INFO L85 PathProgramCache]: Analyzing trace with hash -2087869105, now seen corresponding path program 1 times [2023-12-16 08:08:40,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:40,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1600966987] [2023-12-16 08:08:40,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:40,977 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 08:08:40,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:40,978 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 08:08:40,981 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 08:08:41,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:41,085 INFO L262 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:08:41,092 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:41,147 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 08:08:41,147 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:08:41,147 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:41,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1600966987] [2023-12-16 08:08:41,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1600966987] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:08:41,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:08:41,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:08:41,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543377181] [2023-12-16 08:08:41,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:41,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:08:41,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:41,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:08:41,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:08:41,166 INFO L87 Difference]: Start difference. First operand 566 states and 882 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:41,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:41,523 INFO L93 Difference]: Finished difference Result 1116 states and 1744 transitions. [2023-12-16 08:08:41,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:08:41,523 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 132 [2023-12-16 08:08:41,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:41,525 INFO L225 Difference]: With dead ends: 1116 [2023-12-16 08:08:41,525 INFO L226 Difference]: Without dead ends: 566 [2023-12-16 08:08:41,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 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 08:08:41,527 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 580 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 597 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:41,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [597 Valid, 706 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:08:41,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2023-12-16 08:08:41,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 566. [2023-12-16 08:08:41,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 509 states have (on average 1.5520628683693516) internal successors, (790), 512 states have internal predecessors, (790), 43 states have call successors, (43), 13 states have call predecessors, (43), 13 states have return successors, (42), 41 states have call predecessors, (42), 41 states have call successors, (42) [2023-12-16 08:08:41,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 875 transitions. [2023-12-16 08:08:41,551 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 875 transitions. Word has length 132 [2023-12-16 08:08:41,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:41,552 INFO L495 AbstractCegarLoop]: Abstraction has 566 states and 875 transitions. [2023-12-16 08:08:41,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:41,552 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 875 transitions. [2023-12-16 08:08:41,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-16 08:08:41,552 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:41,552 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:08:41,573 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 08:08:41,756 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 08:08:41,757 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:41,757 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:41,757 INFO L85 PathProgramCache]: Analyzing trace with hash 766837587, now seen corresponding path program 1 times [2023-12-16 08:08:41,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:41,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1791196479] [2023-12-16 08:08:41,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:41,758 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:08:41,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:41,759 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 08:08:41,760 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 08:08:41,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:41,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:08:41,885 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:41,939 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 08:08:41,939 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:08:41,939 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:41,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1791196479] [2023-12-16 08:08:41,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1791196479] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:08:41,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:08:41,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:08:41,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922123081] [2023-12-16 08:08:41,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:41,940 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:08:41,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:41,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:08:41,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:08:41,950 INFO L87 Difference]: Start difference. First operand 566 states and 875 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:42,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:42,292 INFO L93 Difference]: Finished difference Result 1116 states and 1730 transitions. [2023-12-16 08:08:42,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:08:42,292 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 132 [2023-12-16 08:08:42,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:42,294 INFO L225 Difference]: With dead ends: 1116 [2023-12-16 08:08:42,294 INFO L226 Difference]: Without dead ends: 566 [2023-12-16 08:08:42,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 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 08:08:42,295 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 574 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 591 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:42,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [591 Valid, 699 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:08:42,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2023-12-16 08:08:42,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 566. [2023-12-16 08:08:42,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 509 states have (on average 1.538310412573674) internal successors, (783), 512 states have internal predecessors, (783), 43 states have call successors, (43), 13 states have call predecessors, (43), 13 states have return successors, (42), 41 states have call predecessors, (42), 41 states have call successors, (42) [2023-12-16 08:08:42,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 868 transitions. [2023-12-16 08:08:42,322 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 868 transitions. Word has length 132 [2023-12-16 08:08:42,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:42,322 INFO L495 AbstractCegarLoop]: Abstraction has 566 states and 868 transitions. [2023-12-16 08:08:42,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:42,322 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 868 transitions. [2023-12-16 08:08:42,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-16 08:08:42,323 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:42,323 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:08:42,338 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 (23)] Ended with exit code 0 [2023-12-16 08:08:42,527 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 08:08:42,527 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:42,527 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:42,528 INFO L85 PathProgramCache]: Analyzing trace with hash 166188239, now seen corresponding path program 1 times [2023-12-16 08:08:42,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:42,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [47448163] [2023-12-16 08:08:42,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:42,528 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 08:08:42,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:42,534 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 08:08:42,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-12-16 08:08:42,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:42,643 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:08:42,645 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:42,692 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 08:08:42,692 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:08:42,692 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:42,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [47448163] [2023-12-16 08:08:42,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [47448163] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:08:42,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:08:42,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:08:42,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089215233] [2023-12-16 08:08:42,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:42,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:08:42,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:42,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:08:42,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:08:42,693 INFO L87 Difference]: Start difference. First operand 566 states and 868 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:43,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:43,007 INFO L93 Difference]: Finished difference Result 1116 states and 1716 transitions. [2023-12-16 08:08:43,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:08:43,027 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 132 [2023-12-16 08:08:43,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:43,029 INFO L225 Difference]: With dead ends: 1116 [2023-12-16 08:08:43,029 INFO L226 Difference]: Without dead ends: 566 [2023-12-16 08:08:43,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 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 08:08:43,032 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 568 mSDsluCounter, 424 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 585 SdHoareTripleChecker+Valid, 692 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:43,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [585 Valid, 692 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:08:43,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2023-12-16 08:08:43,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 566. [2023-12-16 08:08:43,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 509 states have (on average 1.524557956777996) internal successors, (776), 512 states have internal predecessors, (776), 43 states have call successors, (43), 13 states have call predecessors, (43), 13 states have return successors, (42), 41 states have call predecessors, (42), 41 states have call successors, (42) [2023-12-16 08:08:43,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 861 transitions. [2023-12-16 08:08:43,059 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 861 transitions. Word has length 132 [2023-12-16 08:08:43,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:43,059 INFO L495 AbstractCegarLoop]: Abstraction has 566 states and 861 transitions. [2023-12-16 08:08:43,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:43,059 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 861 transitions. [2023-12-16 08:08:43,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-16 08:08:43,060 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:43,060 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:08:43,074 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-12-16 08:08:43,265 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 08:08:43,265 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:43,265 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:43,266 INFO L85 PathProgramCache]: Analyzing trace with hash 284629713, now seen corresponding path program 1 times [2023-12-16 08:08:43,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:43,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [681850837] [2023-12-16 08:08:43,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:43,266 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 08:08:43,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:43,267 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 08:08:43,269 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 08:08:43,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:43,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:08:43,387 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:43,440 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 08:08:43,440 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:08:43,440 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:43,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [681850837] [2023-12-16 08:08:43,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [681850837] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:08:43,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:08:43,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:08:43,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491148467] [2023-12-16 08:08:43,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:43,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:08:43,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:43,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:08:43,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:08:43,442 INFO L87 Difference]: Start difference. First operand 566 states and 861 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:43,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:43,865 INFO L93 Difference]: Finished difference Result 1246 states and 1914 transitions. [2023-12-16 08:08:43,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:08:43,865 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 132 [2023-12-16 08:08:43,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:43,867 INFO L225 Difference]: With dead ends: 1246 [2023-12-16 08:08:43,868 INFO L226 Difference]: Without dead ends: 696 [2023-12-16 08:08:43,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 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 08:08:43,869 INFO L413 NwaCegarLoop]: 266 mSDtfsCounter, 649 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 505 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 666 SdHoareTripleChecker+Valid, 686 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:43,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [666 Valid, 686 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 505 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:08:43,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2023-12-16 08:08:43,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 696. [2023-12-16 08:08:43,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 633 states have (on average 1.5023696682464456) internal successors, (951), 636 states have internal predecessors, (951), 45 states have call successors, (45), 17 states have call predecessors, (45), 17 states have return successors, (44), 43 states have call predecessors, (44), 43 states have call successors, (44) [2023-12-16 08:08:43,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 1040 transitions. [2023-12-16 08:08:43,902 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 1040 transitions. Word has length 132 [2023-12-16 08:08:43,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:43,902 INFO L495 AbstractCegarLoop]: Abstraction has 696 states and 1040 transitions. [2023-12-16 08:08:43,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:43,902 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 1040 transitions. [2023-12-16 08:08:43,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-16 08:08:43,902 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:43,903 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:08:43,921 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 08:08:44,108 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 08:08:44,108 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:44,108 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:44,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1127003948, now seen corresponding path program 1 times [2023-12-16 08:08:44,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:44,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [902326173] [2023-12-16 08:08:44,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:44,109 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 08:08:44,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:44,110 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 08:08:44,111 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 08:08:44,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:44,229 INFO L262 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:08:44,231 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:44,283 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 08:08:44,283 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:08:44,283 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:44,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [902326173] [2023-12-16 08:08:44,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [902326173] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:08:44,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:08:44,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:08:44,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70876317] [2023-12-16 08:08:44,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:44,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:08:44,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:44,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:08:44,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:08:44,285 INFO L87 Difference]: Start difference. First operand 696 states and 1040 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:44,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:44,724 INFO L93 Difference]: Finished difference Result 1506 states and 2272 transitions. [2023-12-16 08:08:44,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:08:44,724 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 132 [2023-12-16 08:08:44,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:44,727 INFO L225 Difference]: With dead ends: 1506 [2023-12-16 08:08:44,727 INFO L226 Difference]: Without dead ends: 826 [2023-12-16 08:08:44,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 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 08:08:44,729 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 642 mSDsluCounter, 416 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:44,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 679 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:08:44,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2023-12-16 08:08:44,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 826. [2023-12-16 08:08:44,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 826 states, 757 states have (on average 1.4821664464993396) internal successors, (1122), 760 states have internal predecessors, (1122), 47 states have call successors, (47), 21 states have call predecessors, (47), 21 states have return successors, (46), 45 states have call predecessors, (46), 45 states have call successors, (46) [2023-12-16 08:08:44,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 826 states to 826 states and 1215 transitions. [2023-12-16 08:08:44,764 INFO L78 Accepts]: Start accepts. Automaton has 826 states and 1215 transitions. Word has length 132 [2023-12-16 08:08:44,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:44,764 INFO L495 AbstractCegarLoop]: Abstraction has 826 states and 1215 transitions. [2023-12-16 08:08:44,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:44,764 INFO L276 IsEmpty]: Start isEmpty. Operand 826 states and 1215 transitions. [2023-12-16 08:08:44,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-16 08:08:44,765 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:44,765 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:08:44,782 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 08:08:44,970 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 08:08:44,970 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:44,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:44,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1016837936, now seen corresponding path program 1 times [2023-12-16 08:08:44,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:44,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1118442244] [2023-12-16 08:08:44,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:44,972 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 08:08:44,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:44,976 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 08:08:44,976 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 08:08:45,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:45,089 INFO L262 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:08:45,091 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:45,141 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 08:08:45,141 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:08:45,141 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:45,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1118442244] [2023-12-16 08:08:45,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1118442244] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:08:45,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:08:45,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:08:45,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838248487] [2023-12-16 08:08:45,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:45,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:08:45,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:45,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:08:45,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:08:45,143 INFO L87 Difference]: Start difference. First operand 826 states and 1215 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:45,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:45,551 INFO L93 Difference]: Finished difference Result 1766 states and 2622 transitions. [2023-12-16 08:08:45,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:08:45,552 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 132 [2023-12-16 08:08:45,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:45,555 INFO L225 Difference]: With dead ends: 1766 [2023-12-16 08:08:45,555 INFO L226 Difference]: Without dead ends: 956 [2023-12-16 08:08:45,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 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 08:08:45,557 INFO L413 NwaCegarLoop]: 260 mSDtfsCounter, 636 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:45,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 672 Invalid, 535 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:08:45,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 956 states. [2023-12-16 08:08:45,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 956 to 956. [2023-12-16 08:08:45,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 956 states, 881 states have (on average 1.4631101021566402) internal successors, (1289), 884 states have internal predecessors, (1289), 49 states have call successors, (49), 25 states have call predecessors, (49), 25 states have return successors, (48), 47 states have call predecessors, (48), 47 states have call successors, (48) [2023-12-16 08:08:45,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 956 states to 956 states and 1386 transitions. [2023-12-16 08:08:45,657 INFO L78 Accepts]: Start accepts. Automaton has 956 states and 1386 transitions. Word has length 132 [2023-12-16 08:08:45,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:45,658 INFO L495 AbstractCegarLoop]: Abstraction has 956 states and 1386 transitions. [2023-12-16 08:08:45,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:45,658 INFO L276 IsEmpty]: Start isEmpty. Operand 956 states and 1386 transitions. [2023-12-16 08:08:45,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-16 08:08:45,659 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:45,659 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:08:45,666 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2023-12-16 08:08:45,864 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 08:08:45,864 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:45,864 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:45,865 INFO L85 PathProgramCache]: Analyzing trace with hash 229096779, now seen corresponding path program 1 times [2023-12-16 08:08:45,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:45,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1218222845] [2023-12-16 08:08:45,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:45,865 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:08:45,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:45,867 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 08:08:45,898 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 08:08:45,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:45,983 INFO L262 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:08:45,986 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:46,041 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 08:08:46,041 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:08:46,041 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:46,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1218222845] [2023-12-16 08:08:46,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1218222845] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:08:46,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:08:46,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:08:46,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662904883] [2023-12-16 08:08:46,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:46,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:08:46,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:46,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:08:46,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:08:46,043 INFO L87 Difference]: Start difference. First operand 956 states and 1386 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:46,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:46,466 INFO L93 Difference]: Finished difference Result 2026 states and 2964 transitions. [2023-12-16 08:08:46,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:08:46,466 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 132 [2023-12-16 08:08:46,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:46,468 INFO L225 Difference]: With dead ends: 2026 [2023-12-16 08:08:46,469 INFO L226 Difference]: Without dead ends: 1086 [2023-12-16 08:08:46,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 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 08:08:46,471 INFO L413 NwaCegarLoop]: 257 mSDtfsCounter, 629 mSDsluCounter, 408 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 665 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:46,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [646 Valid, 665 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:08:46,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1086 states. [2023-12-16 08:08:46,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1086 to 1086. [2023-12-16 08:08:46,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1086 states, 1005 states have (on average 1.4447761194029851) internal successors, (1452), 1008 states have internal predecessors, (1452), 51 states have call successors, (51), 29 states have call predecessors, (51), 29 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2023-12-16 08:08:46,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1553 transitions. [2023-12-16 08:08:46,517 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1553 transitions. Word has length 132 [2023-12-16 08:08:46,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:46,517 INFO L495 AbstractCegarLoop]: Abstraction has 1086 states and 1553 transitions. [2023-12-16 08:08:46,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:46,517 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1553 transitions. [2023-12-16 08:08:46,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-16 08:08:46,518 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:46,518 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:08:46,526 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 08:08:46,723 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 08:08:46,723 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:46,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:46,724 INFO L85 PathProgramCache]: Analyzing trace with hash -937497009, now seen corresponding path program 1 times [2023-12-16 08:08:46,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:46,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [831941388] [2023-12-16 08:08:46,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:46,724 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:08:46,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:46,725 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 08:08:46,755 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 08:08:46,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:46,833 INFO L262 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:08:46,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:46,874 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 08:08:46,874 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:08:46,874 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:46,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [831941388] [2023-12-16 08:08:46,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [831941388] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:08:46,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:08:46,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:08:46,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47954443] [2023-12-16 08:08:46,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:46,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:08:46,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:46,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:08:46,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:08:46,875 INFO L87 Difference]: Start difference. First operand 1086 states and 1553 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:47,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:47,318 INFO L93 Difference]: Finished difference Result 2286 states and 3298 transitions. [2023-12-16 08:08:47,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:08:47,318 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 132 [2023-12-16 08:08:47,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:47,321 INFO L225 Difference]: With dead ends: 2286 [2023-12-16 08:08:47,321 INFO L226 Difference]: Without dead ends: 1216 [2023-12-16 08:08:47,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 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 08:08:47,323 INFO L413 NwaCegarLoop]: 254 mSDtfsCounter, 621 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:47,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 658 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:08:47,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1216 states. [2023-12-16 08:08:47,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1216 to 1216. [2023-12-16 08:08:47,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1216 states, 1129 states have (on average 1.4269264836138176) internal successors, (1611), 1132 states have internal predecessors, (1611), 53 states have call successors, (53), 33 states have call predecessors, (53), 33 states have return successors, (52), 51 states have call predecessors, (52), 51 states have call successors, (52) [2023-12-16 08:08:47,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1216 states to 1216 states and 1716 transitions. [2023-12-16 08:08:47,373 INFO L78 Accepts]: Start accepts. Automaton has 1216 states and 1716 transitions. Word has length 132 [2023-12-16 08:08:47,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:47,373 INFO L495 AbstractCegarLoop]: Abstraction has 1216 states and 1716 transitions. [2023-12-16 08:08:47,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:47,374 INFO L276 IsEmpty]: Start isEmpty. Operand 1216 states and 1716 transitions. [2023-12-16 08:08:47,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-16 08:08:47,374 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:47,374 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:08:47,382 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 08:08:47,579 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 08:08:47,580 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:47,580 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:47,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1334251628, now seen corresponding path program 1 times [2023-12-16 08:08:47,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:47,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [649447085] [2023-12-16 08:08:47,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:47,581 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 08:08:47,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:47,582 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 08:08:47,583 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 08:08:47,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:47,685 INFO L262 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:08:47,687 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:47,737 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 08:08:47,737 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:08:47,737 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:47,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [649447085] [2023-12-16 08:08:47,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [649447085] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:08:47,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:08:47,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:08:47,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57796146] [2023-12-16 08:08:47,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:47,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:08:47,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:47,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:08:47,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:08:47,739 INFO L87 Difference]: Start difference. First operand 1216 states and 1716 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:48,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:48,159 INFO L93 Difference]: Finished difference Result 2546 states and 3624 transitions. [2023-12-16 08:08:48,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:08:48,159 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 132 [2023-12-16 08:08:48,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:48,163 INFO L225 Difference]: With dead ends: 2546 [2023-12-16 08:08:48,163 INFO L226 Difference]: Without dead ends: 1346 [2023-12-16 08:08:48,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 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 08:08:48,166 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 614 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:48,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [631 Valid, 651 Invalid, 532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:08:48,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1346 states. [2023-12-16 08:08:48,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1346 to 1346. [2023-12-16 08:08:48,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1346 states, 1253 states have (on average 1.409417398244214) internal successors, (1766), 1256 states have internal predecessors, (1766), 55 states have call successors, (55), 37 states have call predecessors, (55), 37 states have return successors, (54), 53 states have call predecessors, (54), 53 states have call successors, (54) [2023-12-16 08:08:48,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 1875 transitions. [2023-12-16 08:08:48,259 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 1875 transitions. Word has length 132 [2023-12-16 08:08:48,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:48,259 INFO L495 AbstractCegarLoop]: Abstraction has 1346 states and 1875 transitions. [2023-12-16 08:08:48,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:48,259 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 1875 transitions. [2023-12-16 08:08:48,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-16 08:08:48,260 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:48,260 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:08:48,273 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Forceful destruction successful, exit code 0 [2023-12-16 08:08:48,465 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 08:08:48,465 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:48,466 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:48,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1273167120, now seen corresponding path program 1 times [2023-12-16 08:08:48,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:48,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [599468389] [2023-12-16 08:08:48,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:48,466 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 08:08:48,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:48,467 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 08:08:48,469 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 08:08:48,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:48,595 INFO L262 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:08:48,597 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:48,647 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 08:08:48,648 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:08:48,648 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:48,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [599468389] [2023-12-16 08:08:48,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [599468389] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:08:48,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:08:48,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:08:48,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364237204] [2023-12-16 08:08:48,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:48,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:08:48,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:48,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:08:48,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:08:48,649 INFO L87 Difference]: Start difference. First operand 1346 states and 1875 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:49,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:49,083 INFO L93 Difference]: Finished difference Result 2806 states and 3942 transitions. [2023-12-16 08:08:49,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:08:49,083 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 132 [2023-12-16 08:08:49,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:49,088 INFO L225 Difference]: With dead ends: 2806 [2023-12-16 08:08:49,088 INFO L226 Difference]: Without dead ends: 1476 [2023-12-16 08:08:49,091 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 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 08:08:49,091 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 607 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:49,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 644 Invalid, 531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:08:49,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1476 states. [2023-12-16 08:08:49,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1476 to 1476. [2023-12-16 08:08:49,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1476 states, 1377 states have (on average 1.392156862745098) internal successors, (1917), 1380 states have internal predecessors, (1917), 57 states have call successors, (57), 41 states have call predecessors, (57), 41 states have return successors, (56), 55 states have call predecessors, (56), 55 states have call successors, (56) [2023-12-16 08:08:49,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1476 states to 1476 states and 2030 transitions. [2023-12-16 08:08:49,287 INFO L78 Accepts]: Start accepts. Automaton has 1476 states and 2030 transitions. Word has length 132 [2023-12-16 08:08:49,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:49,287 INFO L495 AbstractCegarLoop]: Abstraction has 1476 states and 2030 transitions. [2023-12-16 08:08:49,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:49,287 INFO L276 IsEmpty]: Start isEmpty. Operand 1476 states and 2030 transitions. [2023-12-16 08:08:49,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-16 08:08:49,288 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:49,288 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:08:49,292 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 08:08:49,500 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 08:08:49,500 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:49,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:49,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1766109587, now seen corresponding path program 1 times [2023-12-16 08:08:49,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:49,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1825628655] [2023-12-16 08:08:49,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:49,501 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 08:08:49,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:49,502 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 08:08:49,503 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 08:08:49,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:49,613 INFO L262 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:08:49,615 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:49,659 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 08:08:49,660 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:08:49,660 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:49,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1825628655] [2023-12-16 08:08:49,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1825628655] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:08:49,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:08:49,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:08:49,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740925532] [2023-12-16 08:08:49,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:49,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:08:49,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:49,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:08:49,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:08:49,661 INFO L87 Difference]: Start difference. First operand 1476 states and 2030 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:50,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:50,079 INFO L93 Difference]: Finished difference Result 3066 states and 4252 transitions. [2023-12-16 08:08:50,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:08:50,087 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 132 [2023-12-16 08:08:50,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:50,091 INFO L225 Difference]: With dead ends: 3066 [2023-12-16 08:08:50,092 INFO L226 Difference]: Without dead ends: 1606 [2023-12-16 08:08:50,094 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 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 08:08:50,094 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 600 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 617 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:50,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [617 Valid, 637 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 494 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:08:50,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2023-12-16 08:08:50,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1606. [2023-12-16 08:08:50,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1606 states, 1501 states have (on average 1.3750832778147901) internal successors, (2064), 1504 states have internal predecessors, (2064), 59 states have call successors, (59), 45 states have call predecessors, (59), 45 states have return successors, (58), 57 states have call predecessors, (58), 57 states have call successors, (58) [2023-12-16 08:08:50,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1606 states to 1606 states and 2181 transitions. [2023-12-16 08:08:50,158 INFO L78 Accepts]: Start accepts. Automaton has 1606 states and 2181 transitions. Word has length 132 [2023-12-16 08:08:50,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:50,158 INFO L495 AbstractCegarLoop]: Abstraction has 1606 states and 2181 transitions. [2023-12-16 08:08:50,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:50,158 INFO L276 IsEmpty]: Start isEmpty. Operand 1606 states and 2181 transitions. [2023-12-16 08:08:50,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-16 08:08:50,160 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:50,160 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:08:50,171 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 08:08:50,365 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 08:08:50,365 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:50,365 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:50,365 INFO L85 PathProgramCache]: Analyzing trace with hash -108270065, now seen corresponding path program 1 times [2023-12-16 08:08:50,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:50,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [352932932] [2023-12-16 08:08:50,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:50,366 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 08:08:50,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:50,367 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 08:08:50,379 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 08:08:50,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:50,477 INFO L262 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:08:50,480 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:50,544 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 08:08:50,544 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:08:50,544 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:50,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [352932932] [2023-12-16 08:08:50,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [352932932] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:08:50,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:08:50,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:08:50,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454060490] [2023-12-16 08:08:50,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:50,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:08:50,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:50,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:08:50,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:08:50,545 INFO L87 Difference]: Start difference. First operand 1606 states and 2181 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:51,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:51,062 INFO L93 Difference]: Finished difference Result 3326 states and 4554 transitions. [2023-12-16 08:08:51,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:08:51,062 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 132 [2023-12-16 08:08:51,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:51,066 INFO L225 Difference]: With dead ends: 3326 [2023-12-16 08:08:51,066 INFO L226 Difference]: Without dead ends: 1736 [2023-12-16 08:08:51,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 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 08:08:51,069 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 593 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 610 SdHoareTripleChecker+Valid, 630 SdHoareTripleChecker+Invalid, 529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:51,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [610 Valid, 630 Invalid, 529 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:08:51,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1736 states. [2023-12-16 08:08:51,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1736 to 1736. [2023-12-16 08:08:51,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1736 states, 1625 states have (on average 1.358153846153846) internal successors, (2207), 1628 states have internal predecessors, (2207), 61 states have call successors, (61), 49 states have call predecessors, (61), 49 states have return successors, (60), 59 states have call predecessors, (60), 59 states have call successors, (60) [2023-12-16 08:08:51,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1736 states to 1736 states and 2328 transitions. [2023-12-16 08:08:51,140 INFO L78 Accepts]: Start accepts. Automaton has 1736 states and 2328 transitions. Word has length 132 [2023-12-16 08:08:51,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:51,141 INFO L495 AbstractCegarLoop]: Abstraction has 1736 states and 2328 transitions. [2023-12-16 08:08:51,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:51,141 INFO L276 IsEmpty]: Start isEmpty. Operand 1736 states and 2328 transitions. [2023-12-16 08:08:51,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-16 08:08:51,141 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:51,141 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:08:51,146 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2023-12-16 08:08:51,346 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 08:08:51,346 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:51,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:51,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1319306284, now seen corresponding path program 1 times [2023-12-16 08:08:51,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:51,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1060062759] [2023-12-16 08:08:51,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:51,347 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 08:08:51,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:51,348 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 08:08:51,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2023-12-16 08:08:51,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:51,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:08:51,453 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:51,463 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 08:08:51,463 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:08:51,463 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:51,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1060062759] [2023-12-16 08:08:51,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1060062759] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:08:51,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:08:51,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:08:51,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721222683] [2023-12-16 08:08:51,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:51,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:08:51,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:51,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:08:51,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:08:51,465 INFO L87 Difference]: Start difference. First operand 1736 states and 2328 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:51,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:51,608 INFO L93 Difference]: Finished difference Result 3571 states and 4827 transitions. [2023-12-16 08:08:51,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:08:51,609 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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 132 [2023-12-16 08:08:51,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:51,633 INFO L225 Difference]: With dead ends: 3571 [2023-12-16 08:08:51,633 INFO L226 Difference]: Without dead ends: 1852 [2023-12-16 08:08:51,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 129 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 08:08:51,637 INFO L413 NwaCegarLoop]: 372 mSDtfsCounter, 83 mSDsluCounter, 731 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:51,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 1103 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:08:51,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1852 states. [2023-12-16 08:08:51,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1852 to 1740. [2023-12-16 08:08:51,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1740 states, 1629 states have (on average 1.3462246777163904) internal successors, (2193), 1632 states have internal predecessors, (2193), 61 states have call successors, (61), 49 states have call predecessors, (61), 49 states have return successors, (60), 59 states have call predecessors, (60), 59 states have call successors, (60) [2023-12-16 08:08:51,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1740 states to 1740 states and 2314 transitions. [2023-12-16 08:08:51,783 INFO L78 Accepts]: Start accepts. Automaton has 1740 states and 2314 transitions. Word has length 132 [2023-12-16 08:08:51,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:51,783 INFO L495 AbstractCegarLoop]: Abstraction has 1740 states and 2314 transitions. [2023-12-16 08:08:51,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:51,783 INFO L276 IsEmpty]: Start isEmpty. Operand 1740 states and 2314 transitions. [2023-12-16 08:08:51,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-16 08:08:51,784 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:51,784 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:08:51,805 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Forceful destruction successful, exit code 0 [2023-12-16 08:08:51,989 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 08:08:51,989 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:51,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:51,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1905582506, now seen corresponding path program 1 times [2023-12-16 08:08:51,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:51,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [130551114] [2023-12-16 08:08:51,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:51,990 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 08:08:51,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:51,991 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:08:52,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2023-12-16 08:08:52,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:52,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:08:52,105 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:52,115 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 08:08:52,115 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:08:52,115 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:52,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [130551114] [2023-12-16 08:08:52,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [130551114] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:08:52,115 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:08:52,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:08:52,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744844187] [2023-12-16 08:08:52,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:52,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:08:52,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:52,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:08:52,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:08:52,116 INFO L87 Difference]: Start difference. First operand 1740 states and 2314 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:52,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:52,256 INFO L93 Difference]: Finished difference Result 3567 states and 4783 transitions. [2023-12-16 08:08:52,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:08:52,257 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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 132 [2023-12-16 08:08:52,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:52,261 INFO L225 Difference]: With dead ends: 3567 [2023-12-16 08:08:52,261 INFO L226 Difference]: Without dead ends: 1844 [2023-12-16 08:08:52,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 129 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 08:08:52,264 INFO L413 NwaCegarLoop]: 372 mSDtfsCounter, 74 mSDsluCounter, 732 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1104 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:52,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 1104 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:08:52,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states. [2023-12-16 08:08:52,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1744. [2023-12-16 08:08:52,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1744 states, 1633 states have (on average 1.3343539497856705) internal successors, (2179), 1636 states have internal predecessors, (2179), 61 states have call successors, (61), 49 states have call predecessors, (61), 49 states have return successors, (60), 59 states have call predecessors, (60), 59 states have call successors, (60) [2023-12-16 08:08:52,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1744 states to 1744 states and 2300 transitions. [2023-12-16 08:08:52,335 INFO L78 Accepts]: Start accepts. Automaton has 1744 states and 2300 transitions. Word has length 132 [2023-12-16 08:08:52,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:52,360 INFO L495 AbstractCegarLoop]: Abstraction has 1744 states and 2300 transitions. [2023-12-16 08:08:52,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:52,360 INFO L276 IsEmpty]: Start isEmpty. Operand 1744 states and 2300 transitions. [2023-12-16 08:08:52,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-16 08:08:52,361 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:52,361 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:08:52,365 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2023-12-16 08:08:52,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:08:52,566 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:52,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:52,566 INFO L85 PathProgramCache]: Analyzing trace with hash -338824556, now seen corresponding path program 1 times [2023-12-16 08:08:52,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:52,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [355598499] [2023-12-16 08:08:52,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:52,567 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:08:52,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:52,568 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:08:52,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Waiting until timeout for monitored process [2023-12-16 08:08:52,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:52,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:08:52,670 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:52,678 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 08:08:52,678 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:08:52,678 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:52,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [355598499] [2023-12-16 08:08:52,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [355598499] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:08:52,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:08:52,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:08:52,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536706712] [2023-12-16 08:08:52,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:52,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:08:52,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:52,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:08:52,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:08:52,679 INFO L87 Difference]: Start difference. First operand 1744 states and 2300 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:52,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:52,806 INFO L93 Difference]: Finished difference Result 3563 states and 4739 transitions. [2023-12-16 08:08:52,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:08:52,806 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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 132 [2023-12-16 08:08:52,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:52,810 INFO L225 Difference]: With dead ends: 3563 [2023-12-16 08:08:52,810 INFO L226 Difference]: Without dead ends: 1836 [2023-12-16 08:08:52,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 129 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 08:08:52,812 INFO L413 NwaCegarLoop]: 372 mSDtfsCounter, 65 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 1105 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:52,813 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 1105 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:08:52,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1836 states. [2023-12-16 08:08:52,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1836 to 1748. [2023-12-16 08:08:52,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1748 states, 1637 states have (on average 1.3225412339645692) internal successors, (2165), 1640 states have internal predecessors, (2165), 61 states have call successors, (61), 49 states have call predecessors, (61), 49 states have return successors, (60), 59 states have call predecessors, (60), 59 states have call successors, (60) [2023-12-16 08:08:52,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1748 states to 1748 states and 2286 transitions. [2023-12-16 08:08:52,879 INFO L78 Accepts]: Start accepts. Automaton has 1748 states and 2286 transitions. Word has length 132 [2023-12-16 08:08:52,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:52,879 INFO L495 AbstractCegarLoop]: Abstraction has 1748 states and 2286 transitions. [2023-12-16 08:08:52,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:52,880 INFO L276 IsEmpty]: Start isEmpty. Operand 1748 states and 2286 transitions. [2023-12-16 08:08:52,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-16 08:08:52,880 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:52,880 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:08:52,886 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (36)] Ended with exit code 0 [2023-12-16 08:08:53,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:08:53,085 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:53,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:53,085 INFO L85 PathProgramCache]: Analyzing trace with hash -311758954, now seen corresponding path program 1 times [2023-12-16 08:08:53,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:53,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1632431097] [2023-12-16 08:08:53,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:53,085 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 08:08:53,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:53,087 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:08:53,088 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Waiting until timeout for monitored process [2023-12-16 08:08:53,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:53,192 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:08:53,194 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:53,205 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 08:08:53,205 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:08:53,205 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:53,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1632431097] [2023-12-16 08:08:53,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1632431097] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:08:53,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:08:53,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:08:53,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404163966] [2023-12-16 08:08:53,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:53,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:08:53,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:53,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:08:53,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:08:53,206 INFO L87 Difference]: Start difference. First operand 1748 states and 2286 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:53,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:53,345 INFO L93 Difference]: Finished difference Result 3559 states and 4695 transitions. [2023-12-16 08:08:53,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:08:53,346 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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 132 [2023-12-16 08:08:53,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:53,350 INFO L225 Difference]: With dead ends: 3559 [2023-12-16 08:08:53,350 INFO L226 Difference]: Without dead ends: 1828 [2023-12-16 08:08:53,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 129 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 08:08:53,352 INFO L413 NwaCegarLoop]: 372 mSDtfsCounter, 56 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 1106 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:53,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 1106 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:08:53,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1828 states. [2023-12-16 08:08:53,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1828 to 1752. [2023-12-16 08:08:53,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1752 states, 1641 states have (on average 1.3107861060329067) internal successors, (2151), 1644 states have internal predecessors, (2151), 61 states have call successors, (61), 49 states have call predecessors, (61), 49 states have return successors, (60), 59 states have call predecessors, (60), 59 states have call successors, (60) [2023-12-16 08:08:53,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1752 states to 1752 states and 2272 transitions. [2023-12-16 08:08:53,421 INFO L78 Accepts]: Start accepts. Automaton has 1752 states and 2272 transitions. Word has length 132 [2023-12-16 08:08:53,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:53,421 INFO L495 AbstractCegarLoop]: Abstraction has 1752 states and 2272 transitions. [2023-12-16 08:08:53,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:53,421 INFO L276 IsEmpty]: Start isEmpty. Operand 1752 states and 2272 transitions. [2023-12-16 08:08:53,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-16 08:08:53,422 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:53,422 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:08:53,438 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (37)] Forceful destruction successful, exit code 0 [2023-12-16 08:08:53,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:08:53,626 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:53,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:53,627 INFO L85 PathProgramCache]: Analyzing trace with hash -234858156, now seen corresponding path program 1 times [2023-12-16 08:08:53,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:53,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [961380043] [2023-12-16 08:08:53,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:53,627 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 08:08:53,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:53,628 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:08:53,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Waiting until timeout for monitored process [2023-12-16 08:08:53,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:53,733 INFO L262 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:08:53,735 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:53,789 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 08:08:53,789 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:08:53,790 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:53,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [961380043] [2023-12-16 08:08:53,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [961380043] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:08:53,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:08:53,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:08:53,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811931114] [2023-12-16 08:08:53,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:53,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:08:53,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:53,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:08:53,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:08:53,791 INFO L87 Difference]: Start difference. First operand 1752 states and 2272 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 2 states have call successors, (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 08:08:54,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:54,020 INFO L93 Difference]: Finished difference Result 5065 states and 6584 transitions. [2023-12-16 08:08:54,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:08:54,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 2 states have call successors, (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 132 [2023-12-16 08:08:54,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:54,027 INFO L225 Difference]: With dead ends: 5065 [2023-12-16 08:08:54,027 INFO L226 Difference]: Without dead ends: 3330 [2023-12-16 08:08:54,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 130 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 08:08:54,030 INFO L413 NwaCegarLoop]: 421 mSDtfsCounter, 334 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 334 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:54,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [334 Valid, 760 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:08:54,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3330 states. [2023-12-16 08:08:54,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3330 to 3324. [2023-12-16 08:08:54,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3324 states, 3117 states have (on average 1.2999679178697465) internal successors, (4052), 3121 states have internal predecessors, (4052), 112 states have call successors, (112), 93 states have call predecessors, (112), 94 states have return successors, (112), 110 states have call predecessors, (112), 110 states have call successors, (112) [2023-12-16 08:08:54,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3324 states to 3324 states and 4276 transitions. [2023-12-16 08:08:54,163 INFO L78 Accepts]: Start accepts. Automaton has 3324 states and 4276 transitions. Word has length 132 [2023-12-16 08:08:54,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:54,165 INFO L495 AbstractCegarLoop]: Abstraction has 3324 states and 4276 transitions. [2023-12-16 08:08:54,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 2 states have call successors, (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 08:08:54,165 INFO L276 IsEmpty]: Start isEmpty. Operand 3324 states and 4276 transitions. [2023-12-16 08:08:54,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-16 08:08:54,166 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:54,166 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:08:54,170 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (38)] Ended with exit code 0 [2023-12-16 08:08:54,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:08:54,370 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:54,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:54,371 INFO L85 PathProgramCache]: Analyzing trace with hash 671898291, now seen corresponding path program 1 times [2023-12-16 08:08:54,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:54,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1132897727] [2023-12-16 08:08:54,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:54,372 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 08:08:54,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:54,374 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:08:54,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Waiting until timeout for monitored process [2023-12-16 08:08:54,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:54,477 INFO L262 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:08:54,479 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:54,487 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 08:08:54,488 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:08:54,488 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:54,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1132897727] [2023-12-16 08:08:54,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1132897727] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:08:54,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:08:54,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:08:54,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155541526] [2023-12-16 08:08:54,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:54,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:08:54,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:54,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:08:54,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:08:54,490 INFO L87 Difference]: Start difference. First operand 3324 states and 4276 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:54,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:54,714 INFO L93 Difference]: Finished difference Result 7311 states and 9519 transitions. [2023-12-16 08:08:54,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:08:54,714 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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 132 [2023-12-16 08:08:54,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:54,730 INFO L225 Difference]: With dead ends: 7311 [2023-12-16 08:08:54,730 INFO L226 Difference]: Without dead ends: 4004 [2023-12-16 08:08:54,736 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 129 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 08:08:54,737 INFO L413 NwaCegarLoop]: 375 mSDtfsCounter, 47 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 1119 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:54,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 1119 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:08:54,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4004 states. [2023-12-16 08:08:54,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4004 to 3364. [2023-12-16 08:08:54,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3364 states, 3157 states have (on average 1.2904656319290466) internal successors, (4074), 3161 states have internal predecessors, (4074), 112 states have call successors, (112), 93 states have call predecessors, (112), 94 states have return successors, (112), 110 states have call predecessors, (112), 110 states have call successors, (112) [2023-12-16 08:08:54,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3364 states to 3364 states and 4298 transitions. [2023-12-16 08:08:54,878 INFO L78 Accepts]: Start accepts. Automaton has 3364 states and 4298 transitions. Word has length 132 [2023-12-16 08:08:54,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:54,879 INFO L495 AbstractCegarLoop]: Abstraction has 3364 states and 4298 transitions. [2023-12-16 08:08:54,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:54,879 INFO L276 IsEmpty]: Start isEmpty. Operand 3364 states and 4298 transitions. [2023-12-16 08:08:54,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-16 08:08:54,880 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:54,880 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:08:54,898 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (39)] Forceful destruction successful, exit code 0 [2023-12-16 08:08:55,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:08:55,084 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:55,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:55,084 INFO L85 PathProgramCache]: Analyzing trace with hash -544255435, now seen corresponding path program 1 times [2023-12-16 08:08:55,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:55,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [287873254] [2023-12-16 08:08:55,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:55,085 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 08:08:55,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:55,086 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:08:55,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Waiting until timeout for monitored process [2023-12-16 08:08:55,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:55,190 INFO L262 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:08:55,192 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:55,205 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 08:08:55,205 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:08:55,206 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:55,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [287873254] [2023-12-16 08:08:55,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [287873254] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:08:55,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:08:55,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:08:55,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166424443] [2023-12-16 08:08:55,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:55,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:08:55,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:55,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:08:55,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:08:55,207 INFO L87 Difference]: Start difference. First operand 3364 states and 4298 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:55,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:55,459 INFO L93 Difference]: Finished difference Result 6767 states and 8724 transitions. [2023-12-16 08:08:55,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:08:55,460 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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 132 [2023-12-16 08:08:55,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:55,485 INFO L225 Difference]: With dead ends: 6767 [2023-12-16 08:08:55,485 INFO L226 Difference]: Without dead ends: 3420 [2023-12-16 08:08:55,506 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 129 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 08:08:55,507 INFO L413 NwaCegarLoop]: 372 mSDtfsCounter, 38 mSDsluCounter, 735 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 1107 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:55,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 1107 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:08:55,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3420 states. [2023-12-16 08:08:55,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3420 to 3368. [2023-12-16 08:08:55,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3368 states, 3161 states have (on average 1.2787092692186017) internal successors, (4042), 3165 states have internal predecessors, (4042), 112 states have call successors, (112), 93 states have call predecessors, (112), 94 states have return successors, (112), 110 states have call predecessors, (112), 110 states have call successors, (112) [2023-12-16 08:08:55,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3368 states to 3368 states and 4266 transitions. [2023-12-16 08:08:55,777 INFO L78 Accepts]: Start accepts. Automaton has 3368 states and 4266 transitions. Word has length 132 [2023-12-16 08:08:55,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:55,777 INFO L495 AbstractCegarLoop]: Abstraction has 3368 states and 4266 transitions. [2023-12-16 08:08:55,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:55,778 INFO L276 IsEmpty]: Start isEmpty. Operand 3368 states and 4266 transitions. [2023-12-16 08:08:55,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-16 08:08:55,778 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:55,778 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:08:55,802 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (40)] Forceful destruction successful, exit code 0 [2023-12-16 08:08:55,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:08:56,000 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:56,000 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:56,000 INFO L85 PathProgramCache]: Analyzing trace with hash 135016819, now seen corresponding path program 1 times [2023-12-16 08:08:56,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:56,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [425457740] [2023-12-16 08:08:56,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:56,001 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 08:08:56,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:56,002 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:08:56,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Waiting until timeout for monitored process [2023-12-16 08:08:56,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:56,105 INFO L262 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:08:56,107 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:56,116 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 08:08:56,116 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:08:56,116 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:56,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [425457740] [2023-12-16 08:08:56,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [425457740] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:08:56,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:08:56,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:08:56,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278270740] [2023-12-16 08:08:56,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:56,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:08:56,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:56,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:08:56,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:08:56,117 INFO L87 Difference]: Start difference. First operand 3368 states and 4266 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:56,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:56,321 INFO L93 Difference]: Finished difference Result 6783 states and 8670 transitions. [2023-12-16 08:08:56,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:08:56,322 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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 132 [2023-12-16 08:08:56,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:56,327 INFO L225 Difference]: With dead ends: 6783 [2023-12-16 08:08:56,328 INFO L226 Difference]: Without dead ends: 3432 [2023-12-16 08:08:56,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 129 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 08:08:56,334 INFO L413 NwaCegarLoop]: 372 mSDtfsCounter, 20 mSDsluCounter, 737 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 1109 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:56,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 1109 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:08:56,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3432 states. [2023-12-16 08:08:56,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3432 to 3376. [2023-12-16 08:08:56,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3376 states, 3169 states have (on average 1.2672767434521932) internal successors, (4016), 3173 states have internal predecessors, (4016), 112 states have call successors, (112), 93 states have call predecessors, (112), 94 states have return successors, (112), 110 states have call predecessors, (112), 110 states have call successors, (112) [2023-12-16 08:08:56,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3376 states to 3376 states and 4240 transitions. [2023-12-16 08:08:56,466 INFO L78 Accepts]: Start accepts. Automaton has 3376 states and 4240 transitions. Word has length 132 [2023-12-16 08:08:56,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:56,467 INFO L495 AbstractCegarLoop]: Abstraction has 3376 states and 4240 transitions. [2023-12-16 08:08:56,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:56,467 INFO L276 IsEmpty]: Start isEmpty. Operand 3376 states and 4240 transitions. [2023-12-16 08:08:56,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-16 08:08:56,467 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:56,467 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:08:56,486 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (41)] Forceful destruction successful, exit code 0 [2023-12-16 08:08:56,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:08:56,672 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:56,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:56,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1673356849, now seen corresponding path program 1 times [2023-12-16 08:08:56,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:56,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [999060271] [2023-12-16 08:08:56,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:56,673 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 08:08:56,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:56,674 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:08:56,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (42)] Waiting until timeout for monitored process [2023-12-16 08:08:56,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:56,798 INFO L262 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:08:56,800 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:56,810 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 08:08:56,810 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:08:56,810 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:56,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [999060271] [2023-12-16 08:08:56,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [999060271] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:08:56,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:08:56,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:08:56,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809052296] [2023-12-16 08:08:56,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:56,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:08:56,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:56,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:08:56,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:08:56,812 INFO L87 Difference]: Start difference. First operand 3376 states and 4240 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:56,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:56,992 INFO L93 Difference]: Finished difference Result 6775 states and 8586 transitions. [2023-12-16 08:08:56,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:08:56,993 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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 132 [2023-12-16 08:08:56,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:57,001 INFO L225 Difference]: With dead ends: 6775 [2023-12-16 08:08:57,001 INFO L226 Difference]: Without dead ends: 3416 [2023-12-16 08:08:57,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 129 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 08:08:57,006 INFO L413 NwaCegarLoop]: 372 mSDtfsCounter, 11 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1110 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:57,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1110 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:08:57,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3416 states. [2023-12-16 08:08:57,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3416 to 3384. [2023-12-16 08:08:57,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3384 states, 3177 states have (on average 1.2559017941454202) internal successors, (3990), 3181 states have internal predecessors, (3990), 112 states have call successors, (112), 93 states have call predecessors, (112), 94 states have return successors, (112), 110 states have call predecessors, (112), 110 states have call successors, (112) [2023-12-16 08:08:57,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3384 states to 3384 states and 4214 transitions. [2023-12-16 08:08:57,162 INFO L78 Accepts]: Start accepts. Automaton has 3384 states and 4214 transitions. Word has length 132 [2023-12-16 08:08:57,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:57,163 INFO L495 AbstractCegarLoop]: Abstraction has 3384 states and 4214 transitions. [2023-12-16 08:08:57,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:57,163 INFO L276 IsEmpty]: Start isEmpty. Operand 3384 states and 4214 transitions. [2023-12-16 08:08:57,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-16 08:08:57,164 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:57,164 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:08:57,176 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 (42)] Forceful destruction successful, exit code 0 [2023-12-16 08:08:57,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:08:57,369 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:57,370 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:57,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1320268467, now seen corresponding path program 1 times [2023-12-16 08:08:57,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:57,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1816601967] [2023-12-16 08:08:57,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:57,371 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 08:08:57,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:57,375 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:08:57,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (43)] Waiting until timeout for monitored process [2023-12-16 08:08:57,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:57,527 INFO L262 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 08:08:57,529 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:57,537 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 08:08:57,537 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:08:57,538 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:57,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1816601967] [2023-12-16 08:08:57,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1816601967] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:08:57,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:08:57,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:08:57,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129923225] [2023-12-16 08:08:57,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:57,538 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:08:57,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:57,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:08:57,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:08:57,539 INFO L87 Difference]: Start difference. First operand 3384 states and 4214 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:57,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:57,713 INFO L93 Difference]: Finished difference Result 6767 states and 8502 transitions. [2023-12-16 08:08:57,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:08:57,714 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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 132 [2023-12-16 08:08:57,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:57,720 INFO L225 Difference]: With dead ends: 6767 [2023-12-16 08:08:57,720 INFO L226 Difference]: Without dead ends: 3400 [2023-12-16 08:08:57,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 129 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 08:08:57,725 INFO L413 NwaCegarLoop]: 372 mSDtfsCounter, 2 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1111 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:57,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1111 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:08:57,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3400 states. [2023-12-16 08:08:57,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3400 to 3392. [2023-12-16 08:08:57,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3392 states, 3185 states have (on average 1.2445839874411302) internal successors, (3964), 3189 states have internal predecessors, (3964), 112 states have call successors, (112), 93 states have call predecessors, (112), 94 states have return successors, (112), 110 states have call predecessors, (112), 110 states have call successors, (112) [2023-12-16 08:08:57,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3392 states to 3392 states and 4188 transitions. [2023-12-16 08:08:57,897 INFO L78 Accepts]: Start accepts. Automaton has 3392 states and 4188 transitions. Word has length 132 [2023-12-16 08:08:57,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:57,897 INFO L495 AbstractCegarLoop]: Abstraction has 3392 states and 4188 transitions. [2023-12-16 08:08:57,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:57,898 INFO L276 IsEmpty]: Start isEmpty. Operand 3392 states and 4188 transitions. [2023-12-16 08:08:57,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-16 08:08:57,898 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:57,898 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:08:57,902 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 (43)] Forceful destruction successful, exit code 0 [2023-12-16 08:08:58,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:08:58,103 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:58,103 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:58,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1568414961, now seen corresponding path program 1 times [2023-12-16 08:08:58,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:58,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1892399221] [2023-12-16 08:08:58,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:58,104 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 08:08:58,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:58,105 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:08:58,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (44)] Waiting until timeout for monitored process [2023-12-16 08:08:58,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:58,208 INFO L262 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 08:08:58,211 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:58,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-16 08:08:58,387 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:08:58,387 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:58,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1892399221] [2023-12-16 08:08:58,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1892399221] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:08:58,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:08:58,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:08:58,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823045829] [2023-12-16 08:08:58,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:58,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:08:58,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:58,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:08:58,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:08:58,391 INFO L87 Difference]: Start difference. First operand 3392 states and 4188 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:58,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:08:58,901 INFO L93 Difference]: Finished difference Result 6768 states and 8361 transitions. [2023-12-16 08:08:58,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-16 08:08:58,901 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 132 [2023-12-16 08:08:58,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:08:58,908 INFO L225 Difference]: With dead ends: 6768 [2023-12-16 08:08:58,908 INFO L226 Difference]: Without dead ends: 3392 [2023-12-16 08:08:58,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 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 08:08:58,919 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 448 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:08:58,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 622 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:08:58,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3392 states. [2023-12-16 08:08:59,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3392 to 3392. [2023-12-16 08:08:59,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3392 states, 3185 states have (on average 1.2401883830455258) internal successors, (3950), 3189 states have internal predecessors, (3950), 112 states have call successors, (112), 93 states have call predecessors, (112), 94 states have return successors, (112), 110 states have call predecessors, (112), 110 states have call successors, (112) [2023-12-16 08:08:59,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3392 states to 3392 states and 4174 transitions. [2023-12-16 08:08:59,122 INFO L78 Accepts]: Start accepts. Automaton has 3392 states and 4174 transitions. Word has length 132 [2023-12-16 08:08:59,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:08:59,122 INFO L495 AbstractCegarLoop]: Abstraction has 3392 states and 4174 transitions. [2023-12-16 08:08:59,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 08:08:59,122 INFO L276 IsEmpty]: Start isEmpty. Operand 3392 states and 4174 transitions. [2023-12-16 08:08:59,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-16 08:08:59,123 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:08:59,123 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:08:59,130 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 (44)] Forceful destruction successful, exit code 0 [2023-12-16 08:08:59,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:08:59,324 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:08:59,324 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:08:59,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1843174575, now seen corresponding path program 1 times [2023-12-16 08:08:59,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:08:59,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1025781681] [2023-12-16 08:08:59,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:08:59,325 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 08:08:59,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:08:59,326 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:08:59,327 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Waiting until timeout for monitored process [2023-12-16 08:08:59,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:08:59,444 INFO L262 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 08:08:59,446 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:08:59,563 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 08:08:59,563 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:08:59,563 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:08:59,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1025781681] [2023-12-16 08:08:59,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1025781681] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:08:59,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:08:59,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:08:59,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689672784] [2023-12-16 08:08:59,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:08:59,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 08:08:59,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:08:59,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 08:08:59,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 08:08:59,564 INFO L87 Difference]: Start difference. First operand 3392 states and 4174 transitions. Second operand has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 08:09:00,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:09:00,107 INFO L93 Difference]: Finished difference Result 7046 states and 8684 transitions. [2023-12-16 08:09:00,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 08:09:00,107 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 132 [2023-12-16 08:09:00,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:09:00,114 INFO L225 Difference]: With dead ends: 7046 [2023-12-16 08:09:00,114 INFO L226 Difference]: Without dead ends: 3670 [2023-12-16 08:09:00,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 08:09:00,119 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 545 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 561 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:09:00,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [561 Valid, 617 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:09:00,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3670 states. [2023-12-16 08:09:00,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3670 to 3602. [2023-12-16 08:09:00,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3602 states, 3391 states have (on average 1.223237982895901) internal successors, (4148), 3395 states have internal predecessors, (4148), 112 states have call successors, (112), 97 states have call predecessors, (112), 98 states have return successors, (112), 110 states have call predecessors, (112), 110 states have call successors, (112) [2023-12-16 08:09:00,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3602 states to 3602 states and 4372 transitions. [2023-12-16 08:09:00,313 INFO L78 Accepts]: Start accepts. Automaton has 3602 states and 4372 transitions. Word has length 132 [2023-12-16 08:09:00,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:09:00,314 INFO L495 AbstractCegarLoop]: Abstraction has 3602 states and 4372 transitions. [2023-12-16 08:09:00,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.2) internal successors, (121), 4 states have internal predecessors, (121), 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 08:09:00,314 INFO L276 IsEmpty]: Start isEmpty. Operand 3602 states and 4372 transitions. [2023-12-16 08:09:00,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-12-16 08:09:00,318 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:09:00,318 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 08:09:00,336 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (45)] Forceful destruction successful, exit code 0 [2023-12-16 08:09:00,524 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:09:00,524 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:09:00,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:09:00,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1709161069, now seen corresponding path program 1 times [2023-12-16 08:09:00,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:09:00,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [209361709] [2023-12-16 08:09:00,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:09:00,525 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 08:09:00,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:09:00,526 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:09:00,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Waiting until timeout for monitored process [2023-12-16 08:09:00,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:09:00,635 INFO L262 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:09:00,637 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:09:00,752 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 08:09:00,752 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:09:00,752 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:09:00,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [209361709] [2023-12-16 08:09:00,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [209361709] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:09:00,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:09:00,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 08:09:00,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916730545] [2023-12-16 08:09:00,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:09:00,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:09:00,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:09:00,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:09:00,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:09:00,753 INFO L87 Difference]: Start difference. First operand 3602 states and 4372 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 2 states have call successors, (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 08:09:01,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:09:01,081 INFO L93 Difference]: Finished difference Result 10685 states and 13018 transitions. [2023-12-16 08:09:01,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:09:01,082 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 2 states have call successors, (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 132 [2023-12-16 08:09:01,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:09:01,094 INFO L225 Difference]: With dead ends: 10685 [2023-12-16 08:09:01,094 INFO L226 Difference]: Without dead ends: 7100 [2023-12-16 08:09:01,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 130 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 08:09:01,101 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 251 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 08:09:01,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 696 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 08:09:01,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7100 states. [2023-12-16 08:09:01,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7100 to 7096. [2023-12-16 08:09:01,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7096 states, 6681 states have (on average 1.21299206705583) internal successors, (8104), 6691 states have internal predecessors, (8104), 218 states have call successors, (218), 193 states have call predecessors, (218), 196 states have return successors, (220), 212 states have call predecessors, (220), 216 states have call successors, (220) [2023-12-16 08:09:01,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7096 states to 7096 states and 8542 transitions. [2023-12-16 08:09:01,416 INFO L78 Accepts]: Start accepts. Automaton has 7096 states and 8542 transitions. Word has length 132 [2023-12-16 08:09:01,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:09:01,417 INFO L495 AbstractCegarLoop]: Abstraction has 7096 states and 8542 transitions. [2023-12-16 08:09:01,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 2 states have call successors, (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 08:09:01,417 INFO L276 IsEmpty]: Start isEmpty. Operand 7096 states and 8542 transitions. [2023-12-16 08:09:01,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-12-16 08:09:01,420 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:09:01,421 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:09:01,428 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (46)] Forceful destruction successful, exit code 0 [2023-12-16 08:09:01,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:09:01,625 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:09:01,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:09:01,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1355789400, now seen corresponding path program 1 times [2023-12-16 08:09:01,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:09:01,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1050054634] [2023-12-16 08:09:01,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:09:01,626 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 08:09:01,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:09:01,627 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:09:01,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Waiting until timeout for monitored process [2023-12-16 08:09:01,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:09:01,777 INFO L262 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 08:09:01,780 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:09:01,975 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-16 08:09:01,976 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:09:01,976 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:09:01,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1050054634] [2023-12-16 08:09:01,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1050054634] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:09:01,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:09:01,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:09:01,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515398834] [2023-12-16 08:09:01,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:09:01,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:09:01,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:09:01,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:09:01,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:09:01,977 INFO L87 Difference]: Start difference. First operand 7096 states and 8542 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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 08:09:02,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:09:02,978 INFO L93 Difference]: Finished difference Result 21028 states and 25282 transitions. [2023-12-16 08:09:02,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:09:02,979 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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 212 [2023-12-16 08:09:02,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:09:03,004 INFO L225 Difference]: With dead ends: 21028 [2023-12-16 08:09:03,004 INFO L226 Difference]: Without dead ends: 13950 [2023-12-16 08:09:03,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 210 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 08:09:03,011 INFO L413 NwaCegarLoop]: 454 mSDtfsCounter, 513 mSDsluCounter, 607 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 1061 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:09:03,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 1061 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:09:03,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13950 states. [2023-12-16 08:09:03,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13950 to 13946. [2023-12-16 08:09:03,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13946 states, 13136 states have (on average 1.2064555420219245) internal successors, (15848), 13163 states have internal predecessors, (15848), 417 states have call successors, (417), 369 states have call predecessors, (417), 392 states have return successors, (463), 415 states have call predecessors, (463), 415 states have call successors, (463) [2023-12-16 08:09:03,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13946 states to 13946 states and 16728 transitions. [2023-12-16 08:09:03,618 INFO L78 Accepts]: Start accepts. Automaton has 13946 states and 16728 transitions. Word has length 212 [2023-12-16 08:09:03,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:09:03,619 INFO L495 AbstractCegarLoop]: Abstraction has 13946 states and 16728 transitions. [2023-12-16 08:09:03,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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 08:09:03,619 INFO L276 IsEmpty]: Start isEmpty. Operand 13946 states and 16728 transitions. [2023-12-16 08:09:03,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-12-16 08:09:03,625 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:09:03,625 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:09:03,630 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (47)] Forceful destruction successful, exit code 0 [2023-12-16 08:09:03,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:09:03,831 INFO L420 AbstractCegarLoop]: === Iteration 47 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:09:03,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:09:03,831 INFO L85 PathProgramCache]: Analyzing trace with hash 1803233450, now seen corresponding path program 1 times [2023-12-16 08:09:03,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:09:03,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1965184644] [2023-12-16 08:09:03,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:09:03,832 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 08:09:03,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:09:03,833 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:09:03,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Waiting until timeout for monitored process [2023-12-16 08:09:03,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:09:03,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:09:03,969 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:09:03,979 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-12-16 08:09:03,979 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:09:03,979 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:09:03,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1965184644] [2023-12-16 08:09:03,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1965184644] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:09:03,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:09:03,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:09:03,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2913289] [2023-12-16 08:09:03,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:09:03,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:09:03,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:09:03,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:09:03,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:09:03,981 INFO L87 Difference]: Start difference. First operand 13946 states and 16728 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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 08:09:04,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:09:04,561 INFO L93 Difference]: Finished difference Result 27862 states and 33403 transitions. [2023-12-16 08:09:04,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:09:04,562 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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 212 [2023-12-16 08:09:04,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:09:04,588 INFO L225 Difference]: With dead ends: 27862 [2023-12-16 08:09:04,589 INFO L226 Difference]: Without dead ends: 13934 [2023-12-16 08:09:04,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 210 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 08:09:04,605 INFO L413 NwaCegarLoop]: 365 mSDtfsCounter, 394 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:09:04,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 365 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:09:04,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13934 states. [2023-12-16 08:09:05,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13934 to 13934. [2023-12-16 08:09:05,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13934 states, 13127 states have (on average 1.205987659023387) internal successors, (15831), 13153 states have internal predecessors, (15831), 414 states have call successors, (414), 369 states have call predecessors, (414), 392 states have return successors, (460), 412 states have call predecessors, (460), 412 states have call successors, (460) [2023-12-16 08:09:05,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13934 states to 13934 states and 16705 transitions. [2023-12-16 08:09:05,398 INFO L78 Accepts]: Start accepts. Automaton has 13934 states and 16705 transitions. Word has length 212 [2023-12-16 08:09:05,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:09:05,398 INFO L495 AbstractCegarLoop]: Abstraction has 13934 states and 16705 transitions. [2023-12-16 08:09:05,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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 08:09:05,399 INFO L276 IsEmpty]: Start isEmpty. Operand 13934 states and 16705 transitions. [2023-12-16 08:09:05,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-12-16 08:09:05,405 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:09:05,405 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:09:05,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (48)] Forceful destruction successful, exit code 0 [2023-12-16 08:09:05,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 48 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:09:05,610 INFO L420 AbstractCegarLoop]: === Iteration 48 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:09:05,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:09:05,611 INFO L85 PathProgramCache]: Analyzing trace with hash -320618195, now seen corresponding path program 1 times [2023-12-16 08:09:05,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:09:05,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1964108651] [2023-12-16 08:09:05,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:09:05,611 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 08:09:05,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:09:05,624 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:09:05,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Waiting until timeout for monitored process [2023-12-16 08:09:05,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:09:05,766 INFO L262 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 08:09:05,769 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:09:05,953 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-16 08:09:05,953 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:09:05,953 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:09:05,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1964108651] [2023-12-16 08:09:05,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1964108651] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:09:05,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:09:05,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:09:05,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154830531] [2023-12-16 08:09:05,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:09:05,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:09:05,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:09:05,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:09:05,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:09:05,955 INFO L87 Difference]: Start difference. First operand 13934 states and 16705 transitions. Second operand has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 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 08:09:07,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:09:07,325 INFO L93 Difference]: Finished difference Result 40917 states and 49027 transitions. [2023-12-16 08:09:07,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:09:07,325 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 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 214 [2023-12-16 08:09:07,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:09:07,366 INFO L225 Difference]: With dead ends: 40917 [2023-12-16 08:09:07,367 INFO L226 Difference]: Without dead ends: 27001 [2023-12-16 08:09:07,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 212 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 08:09:07,381 INFO L413 NwaCegarLoop]: 438 mSDtfsCounter, 508 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 1027 SdHoareTripleChecker+Invalid, 411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:09:07,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 1027 Invalid, 411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:09:07,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27001 states. [2023-12-16 08:09:08,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27001 to 26997. [2023-12-16 08:09:08,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26997 states, 25435 states have (on average 1.2023196382936898) internal successors, (30581), 25494 states have internal predecessors, (30581), 793 states have call successors, (793), 705 states have call predecessors, (793), 768 states have return successors, (927), 799 states have call predecessors, (927), 791 states have call successors, (927) [2023-12-16 08:09:08,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26997 states to 26997 states and 32301 transitions. [2023-12-16 08:09:08,772 INFO L78 Accepts]: Start accepts. Automaton has 26997 states and 32301 transitions. Word has length 214 [2023-12-16 08:09:08,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:09:08,772 INFO L495 AbstractCegarLoop]: Abstraction has 26997 states and 32301 transitions. [2023-12-16 08:09:08,772 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 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 08:09:08,772 INFO L276 IsEmpty]: Start isEmpty. Operand 26997 states and 32301 transitions. [2023-12-16 08:09:08,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-12-16 08:09:08,784 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:09:08,784 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:09:08,800 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (49)] Forceful destruction successful, exit code 0 [2023-12-16 08:09:08,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:09:08,989 INFO L420 AbstractCegarLoop]: === Iteration 49 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:09:08,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:09:08,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1175157653, now seen corresponding path program 1 times [2023-12-16 08:09:08,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:09:08,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [386630880] [2023-12-16 08:09:08,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:09:08,990 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 08:09:08,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:09:08,991 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 08:09:09,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Waiting until timeout for monitored process [2023-12-16 08:09:09,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:09:09,119 INFO L262 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:09:09,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:09:09,132 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-12-16 08:09:09,132 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:09:09,132 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:09:09,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [386630880] [2023-12-16 08:09:09,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [386630880] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:09:09,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:09:09,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:09:09,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346914091] [2023-12-16 08:09:09,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:09:09,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:09:09,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:09:09,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:09:09,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:09:09,133 INFO L87 Difference]: Start difference. First operand 26997 states and 32301 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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 08:09:10,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:09:10,355 INFO L93 Difference]: Finished difference Result 53965 states and 64552 transitions. [2023-12-16 08:09:10,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:09:10,356 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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 214 [2023-12-16 08:09:10,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:09:10,399 INFO L225 Difference]: With dead ends: 53965 [2023-12-16 08:09:10,399 INFO L226 Difference]: Without dead ends: 26986 [2023-12-16 08:09:10,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 212 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 08:09:10,415 INFO L413 NwaCegarLoop]: 364 mSDtfsCounter, 392 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:09:10,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 364 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:09:10,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26986 states. [2023-12-16 08:09:11,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26986 to 26986. [2023-12-16 08:09:11,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26986 states, 25427 states have (on average 1.2021079954379204) internal successors, (30566), 25485 states have internal predecessors, (30566), 790 states have call successors, (790), 705 states have call predecessors, (790), 768 states have return successors, (924), 796 states have call predecessors, (924), 788 states have call successors, (924) [2023-12-16 08:09:11,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26986 states to 26986 states and 32280 transitions. [2023-12-16 08:09:11,953 INFO L78 Accepts]: Start accepts. Automaton has 26986 states and 32280 transitions. Word has length 214 [2023-12-16 08:09:11,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:09:11,953 INFO L495 AbstractCegarLoop]: Abstraction has 26986 states and 32280 transitions. [2023-12-16 08:09:11,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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 08:09:11,953 INFO L276 IsEmpty]: Start isEmpty. Operand 26986 states and 32280 transitions. [2023-12-16 08:09:11,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2023-12-16 08:09:11,963 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:09:11,964 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:09:11,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (50)] Forceful destruction successful, exit code 0 [2023-12-16 08:09:12,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:09:12,169 INFO L420 AbstractCegarLoop]: === Iteration 50 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:09:12,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:09:12,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1123374488, now seen corresponding path program 1 times [2023-12-16 08:09:12,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:09:12,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1733522467] [2023-12-16 08:09:12,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:09:12,170 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 08:09:12,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:09:12,171 INFO L229 MonitoredProcess]: Starting monitored process 51 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 08:09:12,201 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 (51)] Waiting until timeout for monitored process [2023-12-16 08:09:12,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:09:12,309 INFO L262 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 08:09:12,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:09:12,503 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-16 08:09:12,503 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:09:12,503 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:09:12,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1733522467] [2023-12-16 08:09:12,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1733522467] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:09:12,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:09:12,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:09:12,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643813523] [2023-12-16 08:09:12,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:09:12,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:09:12,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:09:12,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:09:12,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:09:12,505 INFO L87 Difference]: Start difference. First operand 26986 states and 32280 transitions. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 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 08:09:14,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:09:14,997 INFO L93 Difference]: Finished difference Result 79212 states and 94736 transitions. [2023-12-16 08:09:14,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:09:14,998 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), 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 216 [2023-12-16 08:09:14,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:09:15,088 INFO L225 Difference]: With dead ends: 79212 [2023-12-16 08:09:15,088 INFO L226 Difference]: Without dead ends: 52244 [2023-12-16 08:09:15,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 214 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 08:09:15,116 INFO L413 NwaCegarLoop]: 423 mSDtfsCounter, 500 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 506 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:09:15,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [506 Valid, 994 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:09:15,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52244 states. [2023-12-16 08:09:17,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52244 to 52240. [2023-12-16 08:09:17,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52240 states, 49222 states have (on average 1.1999918735524766) internal successors, (59066), 49353 states have internal predecessors, (59066), 1513 states have call successors, (1513), 1345 states have call predecessors, (1513), 1504 states have return successors, (1839), 1543 states have call predecessors, (1839), 1511 states have call successors, (1839) [2023-12-16 08:09:17,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52240 states to 52240 states and 62418 transitions. [2023-12-16 08:09:17,835 INFO L78 Accepts]: Start accepts. Automaton has 52240 states and 62418 transitions. Word has length 216 [2023-12-16 08:09:17,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:09:17,835 INFO L495 AbstractCegarLoop]: Abstraction has 52240 states and 62418 transitions. [2023-12-16 08:09:17,835 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), 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 08:09:17,835 INFO L276 IsEmpty]: Start isEmpty. Operand 52240 states and 62418 transitions. [2023-12-16 08:09:17,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2023-12-16 08:09:17,855 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:09:17,856 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:09:17,862 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 (51)] Forceful destruction successful, exit code 0 [2023-12-16 08:09:18,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.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 08:09:18,062 INFO L420 AbstractCegarLoop]: === Iteration 51 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:09:18,062 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:09:18,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1844293910, now seen corresponding path program 1 times [2023-12-16 08:09:18,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:09:18,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1376578842] [2023-12-16 08:09:18,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:09:18,062 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 08:09:18,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:09:18,063 INFO L229 MonitoredProcess]: Starting monitored process 52 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 08:09:18,092 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 (52)] Waiting until timeout for monitored process [2023-12-16 08:09:18,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:09:18,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 08:09:18,199 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:09:18,210 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-12-16 08:09:18,210 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:09:18,210 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:09:18,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1376578842] [2023-12-16 08:09:18,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1376578842] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:09:18,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:09:18,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 08:09:18,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234963753] [2023-12-16 08:09:18,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:09:18,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 08:09:18,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:09:18,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 08:09:18,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 08:09:18,211 INFO L87 Difference]: Start difference. First operand 52240 states and 62418 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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 08:09:20,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:09:20,760 INFO L93 Difference]: Finished difference Result 104452 states and 124789 transitions. [2023-12-16 08:09:20,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 08:09:20,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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 216 [2023-12-16 08:09:20,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:09:20,848 INFO L225 Difference]: With dead ends: 104452 [2023-12-16 08:09:20,848 INFO L226 Difference]: Without dead ends: 52230 [2023-12-16 08:09:20,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 214 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 08:09:20,939 INFO L413 NwaCegarLoop]: 363 mSDtfsCounter, 390 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 08:09:20,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 363 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 08:09:20,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52230 states. [2023-12-16 08:09:23,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52230 to 52230. [2023-12-16 08:09:23,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52230 states, 49215 states have (on average 1.199898404957838) internal successors, (59053), 49345 states have internal predecessors, (59053), 1510 states have call successors, (1510), 1345 states have call predecessors, (1510), 1504 states have return successors, (1836), 1540 states have call predecessors, (1836), 1508 states have call successors, (1836) [2023-12-16 08:09:23,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52230 states to 52230 states and 62399 transitions. [2023-12-16 08:09:23,812 INFO L78 Accepts]: Start accepts. Automaton has 52230 states and 62399 transitions. Word has length 216 [2023-12-16 08:09:23,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:09:23,812 INFO L495 AbstractCegarLoop]: Abstraction has 52230 states and 62399 transitions. [2023-12-16 08:09:23,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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 08:09:23,812 INFO L276 IsEmpty]: Start isEmpty. Operand 52230 states and 62399 transitions. [2023-12-16 08:09:23,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-12-16 08:09:23,831 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:09:23,832 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:09:23,837 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 (52)] Forceful destruction successful, exit code 0 [2023-12-16 08:09:24,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.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 08:09:24,037 INFO L420 AbstractCegarLoop]: === Iteration 52 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:09:24,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:09:24,037 INFO L85 PathProgramCache]: Analyzing trace with hash -144017107, now seen corresponding path program 1 times [2023-12-16 08:09:24,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:09:24,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2006407448] [2023-12-16 08:09:24,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:09:24,037 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 08:09:24,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:09:24,039 INFO L229 MonitoredProcess]: Starting monitored process 53 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 08:09:24,067 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 (53)] Waiting until timeout for monitored process [2023-12-16 08:09:24,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:09:24,174 INFO L262 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 08:09:24,176 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:09:24,460 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-16 08:09:24,460 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:09:24,460 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:09:24,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2006407448] [2023-12-16 08:09:24,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2006407448] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:09:24,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:09:24,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:09:24,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145507580] [2023-12-16 08:09:24,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:09:24,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:09:24,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:09:24,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:09:24,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:09:24,461 INFO L87 Difference]: Start difference. First operand 52230 states and 62399 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 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 08:09:28,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 08:09:28,235 INFO L93 Difference]: Finished difference Result 130014 states and 155417 transitions. [2023-12-16 08:09:28,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:09:28,235 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 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 218 [2023-12-16 08:09:28,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 08:09:28,360 INFO L225 Difference]: With dead ends: 130014 [2023-12-16 08:09:28,360 INFO L226 Difference]: Without dead ends: 77802 [2023-12-16 08:09:28,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 216 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 08:09:28,403 INFO L413 NwaCegarLoop]: 278 mSDtfsCounter, 513 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 720 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 08:09:28,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 720 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 08:09:28,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77802 states. [2023-12-16 08:09:32,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77802 to 77798. [2023-12-16 08:09:32,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77798 states, 73311 states have (on average 1.19972446154056) internal successors, (87953), 73521 states have internal predecessors, (87953), 2230 states have call successors, (2230), 1985 states have call predecessors, (2230), 2256 states have return successors, (2764), 2292 states have call predecessors, (2764), 2228 states have call successors, (2764) [2023-12-16 08:09:32,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77798 states to 77798 states and 92947 transitions. [2023-12-16 08:09:32,485 INFO L78 Accepts]: Start accepts. Automaton has 77798 states and 92947 transitions. Word has length 218 [2023-12-16 08:09:32,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 08:09:32,500 INFO L495 AbstractCegarLoop]: Abstraction has 77798 states and 92947 transitions. [2023-12-16 08:09:32,500 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 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 08:09:32,500 INFO L276 IsEmpty]: Start isEmpty. Operand 77798 states and 92947 transitions. [2023-12-16 08:09:32,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2023-12-16 08:09:32,536 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 08:09:32,537 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:09:32,556 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 (53)] Forceful destruction successful, exit code 0 [2023-12-16 08:09:32,737 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.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 08:09:32,737 INFO L420 AbstractCegarLoop]: === Iteration 53 === Targeting error2Err0ASSERT_VIOLATIONERROR_FUNCTION === [error1Err0ASSERT_VIOLATIONERROR_FUNCTION, error2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 08:09:32,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 08:09:32,738 INFO L85 PathProgramCache]: Analyzing trace with hash 1091842344, now seen corresponding path program 1 times [2023-12-16 08:09:32,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 08:09:32,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [317677902] [2023-12-16 08:09:32,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 08:09:32,738 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 08:09:32,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 08:09:32,739 INFO L229 MonitoredProcess]: Starting monitored process 54 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 08:09:32,741 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 (54)] Waiting until timeout for monitored process [2023-12-16 08:09:32,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 08:09:32,867 INFO L262 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-16 08:09:32,870 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 08:09:33,112 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2023-12-16 08:09:33,112 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 08:09:33,112 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 08:09:33,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [317677902] [2023-12-16 08:09:33,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [317677902] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 08:09:33,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 08:09:33,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 08:09:33,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985188229] [2023-12-16 08:09:33,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 08:09:33,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 08:09:33,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 08:09:33,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 08:09:33,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 08:09:33,113 INFO L87 Difference]: Start difference. First operand 77798 states and 92947 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 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) Received shutdown request... [2023-12-16 08:09:39,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 08:09:39,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 218 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 08:09:39,343 INFO L413 NwaCegarLoop]: 406 mSDtfsCounter, 487 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 08:09:39,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [493 Valid, 945 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 08:09:39,344 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location error2Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-12-16 08:09:39,349 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 (54)] Forceful destruction successful, exit code 0 [2023-12-16 08:09:39,374 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 (54)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 08:09:39,374 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 08:09:39,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.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 08:09:39,550 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (77798states) and FLOYD_HOARE automaton (currently 5 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (192065 states constructed, input type IntersectNwa). [2023-12-16 08:09:39,552 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location error1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-12-16 08:09:39,554 INFO L445 BasicCegarLoop]: Path program histogram: [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] [2023-12-16 08:09:39,555 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 08:09:39,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 08:09:39 BoogieIcfgContainer [2023-12-16 08:09:39,556 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 08:09:39,557 INFO L158 Benchmark]: Toolchain (without parser) took 72488.13ms. Allocated memory was 177.2MB in the beginning and 6.5GB in the end (delta: 6.3GB). Free memory was 119.2MB in the beginning and 5.2GB in the end (delta: -5.1GB). Peak memory consumption was 2.2GB. Max. memory is 8.0GB. [2023-12-16 08:09:39,557 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 177.2MB. Free memory is still 130.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 08:09:39,557 INFO L158 Benchmark]: CACSL2BoogieTranslator took 356.41ms. Allocated memory is still 177.2MB. Free memory was 119.2MB in the beginning and 93.9MB in the end (delta: 25.3MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2023-12-16 08:09:39,557 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.88ms. Allocated memory is still 177.2MB. Free memory was 93.9MB in the beginning and 89.8MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 08:09:39,557 INFO L158 Benchmark]: Boogie Preprocessor took 59.13ms. Allocated memory is still 177.2MB. Free memory was 89.8MB in the beginning and 84.2MB in the end (delta: 5.6MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 08:09:39,557 INFO L158 Benchmark]: RCFGBuilder took 872.15ms. Allocated memory was 177.2MB in the beginning and 305.1MB in the end (delta: 127.9MB). Free memory was 84.2MB in the beginning and 220.8MB in the end (delta: -136.6MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2023-12-16 08:09:39,557 INFO L158 Benchmark]: TraceAbstraction took 71124.33ms. Allocated memory was 305.1MB in the beginning and 6.5GB in the end (delta: 6.2GB). Free memory was 219.8MB in the beginning and 5.2GB in the end (delta: -5.0GB). Peak memory consumption was 2.2GB. Max. memory is 8.0GB. [2023-12-16 08:09:39,557 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 177.2MB. Free memory is still 130.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 356.41ms. Allocated memory is still 177.2MB. Free memory was 119.2MB in the beginning and 93.9MB in the end (delta: 25.3MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 59.88ms. Allocated memory is still 177.2MB. Free memory was 93.9MB in the beginning and 89.8MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 59.13ms. Allocated memory is still 177.2MB. Free memory was 89.8MB in the beginning and 84.2MB in the end (delta: 5.6MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 872.15ms. Allocated memory was 177.2MB in the beginning and 305.1MB in the end (delta: 127.9MB). Free memory was 84.2MB in the beginning and 220.8MB in the end (delta: -136.6MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * TraceAbstraction took 71124.33ms. Allocated memory was 305.1MB in the beginning and 6.5GB in the end (delta: 6.2GB). Free memory was 219.8MB in the beginning and 5.2GB in the end (delta: -5.0GB). Peak memory consumption was 2.2GB. 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: 390]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 390). Cancelled while NwaCegarLoop was constructing difference of abstraction (77798states) and FLOYD_HOARE automaton (currently 5 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (192065 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 27]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 27). Cancelled while NwaCegarLoop was constructing difference of abstraction (77798states) and FLOYD_HOARE automaton (currently 5 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (192065 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 350 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 71.1s, OverallIterations: 53, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.2s, AutomataDifference: 32.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22767 SdHoareTripleChecker+Valid, 10.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22378 mSDsluCounter, 44015 SdHoareTripleChecker+Invalid, 8.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24453 mSDsCounter, 1224 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13905 IncrementalHoareTripleChecker+Invalid, 15129 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1224 mSolverCounterUnsat, 19562 mSDtfsCounter, 13905 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6837 GetRequests, 6694 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77798occurred in iteration=52, InterpolantAutomatonStates: 215, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 17.4s AutomataMinimizationTime, 52 MinimizatonAttempts, 1793 StatesRemovedByMinimization, 27 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.2s SsaConstructionTime, 2.7s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 6737 NumberOfCodeBlocks, 6737 NumberOfCodeBlocksAsserted, 54 NumberOfCheckSat, 6803 ConstructedInterpolants, 0 QuantifiedInterpolants, 11819 SizeOfPredicates, 13 NumberOfNonLiveVariables, 18225 ConjunctsInSsa, 209 ConjunctsInUnsatCore, 55 InterpolantComputations, 52 PerfectInterpolantSequences, 753/779 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