/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/eca-rers2012/Problem18_label51.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 16:51:04,560 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 16:51:04,632 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-22 16:51:04,636 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 16:51:04,637 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 16:51:04,658 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 16:51:04,658 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 16:51:04,659 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 16:51:04,659 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 16:51:04,663 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 16:51:04,663 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 16:51:04,664 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 16:51:04,664 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 16:51:04,666 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 16:51:04,666 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 16:51:04,666 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 16:51:04,666 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 16:51:04,666 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 16:51:04,667 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 16:51:04,668 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 16:51:04,668 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 16:51:04,668 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 16:51:04,668 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 16:51:04,669 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 16:51:04,669 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 16:51:04,669 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 16:51:04,669 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 16:51:04,669 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 16:51:04,669 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 16:51:04,669 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 16:51:04,670 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 16:51:04,670 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 16:51:04,670 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 16:51:04,671 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 16:51:04,671 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 16:51:04,671 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 16:51:04,671 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 16:51:04,671 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 16:51:04,671 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 16:51:04,671 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 16:51:04,671 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 16:51:04,672 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 16:51:04,672 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 16:51:04,672 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 16:51:04,672 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 16:51:04,672 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 16:51:04,672 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 16:51:04,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 16:51:04,867 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 16:51:04,869 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 16:51:04,870 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 16:51:04,870 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 16:51:04,872 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label51.c [2023-12-22 16:51:05,977 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 16:51:06,268 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 16:51:06,268 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label51.c [2023-12-22 16:51:06,292 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43b7715be/63f315e98a15423da7148fde54538530/FLAGbe64d3078 [2023-12-22 16:51:06,308 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43b7715be/63f315e98a15423da7148fde54538530 [2023-12-22 16:51:06,310 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 16:51:06,310 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 16:51:06,311 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 16:51:06,311 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 16:51:06,314 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 16:51:06,315 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:51:06" (1/1) ... [2023-12-22 16:51:06,315 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cc52b49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:51:06, skipping insertion in model container [2023-12-22 16:51:06,315 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:51:06" (1/1) ... [2023-12-22 16:51:06,398 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 16:51:06,586 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label51.c[6263,6276] [2023-12-22 16:51:07,122 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 16:51:07,132 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 16:51:07,151 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label51.c[6263,6276] [2023-12-22 16:51:07,370 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 16:51:07,386 INFO L206 MainTranslator]: Completed translation [2023-12-22 16:51:07,386 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:51:07 WrapperNode [2023-12-22 16:51:07,386 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 16:51:07,387 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 16:51:07,387 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 16:51:07,387 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 16:51:07,392 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:51:07" (1/1) ... [2023-12-22 16:51:07,453 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:51:07" (1/1) ... [2023-12-22 16:51:07,564 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 4131 [2023-12-22 16:51:07,564 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 16:51:07,565 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 16:51:07,566 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 16:51:07,566 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 16:51:07,573 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:51:07" (1/1) ... [2023-12-22 16:51:07,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:51:07" (1/1) ... [2023-12-22 16:51:07,586 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:51:07" (1/1) ... [2023-12-22 16:51:07,628 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]. [2023-12-22 16:51:07,629 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:51:07" (1/1) ... [2023-12-22 16:51:07,629 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:51:07" (1/1) ... [2023-12-22 16:51:07,676 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:51:07" (1/1) ... [2023-12-22 16:51:07,695 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:51:07" (1/1) ... [2023-12-22 16:51:07,713 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:51:07" (1/1) ... [2023-12-22 16:51:07,723 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:51:07" (1/1) ... [2023-12-22 16:51:07,739 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 16:51:07,740 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 16:51:07,740 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 16:51:07,740 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 16:51:07,741 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:51:07" (1/1) ... [2023-12-22 16:51:07,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 16:51:07,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 16:51:07,772 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) [2023-12-22 16:51:07,774 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 [2023-12-22 16:51:07,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 16:51:07,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 16:51:07,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 16:51:07,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 16:51:07,842 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 16:51:07,844 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 16:51:19,586 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 16:51:19,637 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 16:51:19,637 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-22 16:51:19,637 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:51:19 BoogieIcfgContainer [2023-12-22 16:51:19,638 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 16:51:19,639 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 16:51:19,639 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 16:51:19,641 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 16:51:19,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 04:51:06" (1/3) ... [2023-12-22 16:51:19,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f8e8d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:51:19, skipping insertion in model container [2023-12-22 16:51:19,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:51:07" (2/3) ... [2023-12-22 16:51:19,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f8e8d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:51:19, skipping insertion in model container [2023-12-22 16:51:19,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:51:19" (3/3) ... [2023-12-22 16:51:19,643 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label51.c [2023-12-22 16:51:19,655 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 16:51:19,655 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-22 16:51:19,703 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 16:51:19,708 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;@2142b109, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 16:51:19,708 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-22 16:51:19,716 INFO L276 IsEmpty]: Start isEmpty. Operand has 695 states, 693 states have (on average 1.9942279942279941) internal successors, (1382), 694 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:51:19,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-22 16:51:19,721 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 16:51:19,722 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] [2023-12-22 16:51:19,722 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 16:51:19,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 16:51:19,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1677427773, now seen corresponding path program 1 times [2023-12-22 16:51:19,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 16:51:19,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1023004883] [2023-12-22 16:51:19,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 16:51:19,736 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 [2023-12-22 16:51:19,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 16:51:19,745 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) [2023-12-22 16:51:19,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-22 16:51:19,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 16:51:19,862 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 16:51:19,866 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 16:51:19,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 16:51:19,892 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 16:51:19,892 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 16:51:19,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1023004883] [2023-12-22 16:51:19,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1023004883] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 16:51:19,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 16:51:19,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 16:51:19,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384623487] [2023-12-22 16:51:19,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 16:51:19,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 16:51:19,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 16:51:19,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 16:51:19,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 16:51:19,929 INFO L87 Difference]: Start difference. First operand has 695 states, 693 states have (on average 1.9942279942279941) internal successors, (1382), 694 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:51:19,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 16:51:19,998 INFO L93 Difference]: Finished difference Result 1389 states and 2763 transitions. [2023-12-22 16:51:20,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 16:51:20,005 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2023-12-22 16:51:20,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 16:51:20,021 INFO L225 Difference]: With dead ends: 1389 [2023-12-22 16:51:20,021 INFO L226 Difference]: Without dead ends: 693 [2023-12-22 16:51:20,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 16:51:20,027 INFO L413 NwaCegarLoop]: 1317 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1317 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 16:51:20,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1317 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 16:51:20,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2023-12-22 16:51:20,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 693. [2023-12-22 16:51:20,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 692 states have (on average 1.903179190751445) internal successors, (1317), 692 states have internal predecessors, (1317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:51:20,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1317 transitions. [2023-12-22 16:51:20,091 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1317 transitions. Word has length 59 [2023-12-22 16:51:20,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 16:51:20,092 INFO L495 AbstractCegarLoop]: Abstraction has 693 states and 1317 transitions. [2023-12-22 16:51:20,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.5) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:51:20,092 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1317 transitions. [2023-12-22 16:51:20,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-22 16:51:20,093 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 16:51:20,093 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] [2023-12-22 16:51:20,099 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 [2023-12-22 16:51:20,293 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 [2023-12-22 16:51:20,294 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 16:51:20,294 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 16:51:20,294 INFO L85 PathProgramCache]: Analyzing trace with hash 306654237, now seen corresponding path program 1 times [2023-12-22 16:51:20,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 16:51:20,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [378969337] [2023-12-22 16:51:20,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 16:51:20,295 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 [2023-12-22 16:51:20,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 16:51:20,296 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) [2023-12-22 16:51:20,304 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 [2023-12-22 16:51:20,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 16:51:20,332 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 16:51:20,334 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 16:51:20,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 16:51:20,441 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 16:51:20,441 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 16:51:20,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [378969337] [2023-12-22 16:51:20,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [378969337] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 16:51:20,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 16:51:20,442 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 16:51:20,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002667392] [2023-12-22 16:51:20,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 16:51:20,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 16:51:20,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 16:51:20,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 16:51:20,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 16:51:20,443 INFO L87 Difference]: Start difference. First operand 693 states and 1317 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:51:34,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 16:51:34,144 INFO L93 Difference]: Finished difference Result 2075 states and 3948 transitions. [2023-12-22 16:51:34,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 16:51:34,145 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2023-12-22 16:51:34,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 16:51:34,149 INFO L225 Difference]: With dead ends: 2075 [2023-12-22 16:51:34,149 INFO L226 Difference]: Without dead ends: 1383 [2023-12-22 16:51:34,150 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 [2023-12-22 16:51:34,151 INFO L413 NwaCegarLoop]: 429 mSDtfsCounter, 716 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2200 mSolverCounterSat, 420 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 716 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 2620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 420 IncrementalHoareTripleChecker+Valid, 2200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2023-12-22 16:51:34,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [716 Valid, 435 Invalid, 2620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [420 Valid, 2200 Invalid, 0 Unknown, 0 Unchecked, 13.6s Time] [2023-12-22 16:51:34,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1383 states. [2023-12-22 16:51:34,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1383 to 1383. [2023-12-22 16:51:34,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1383 states, 1382 states have (on average 1.5998552821997105) internal successors, (2211), 1382 states have internal predecessors, (2211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:51:34,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1383 states to 1383 states and 2211 transitions. [2023-12-22 16:51:34,173 INFO L78 Accepts]: Start accepts. Automaton has 1383 states and 2211 transitions. Word has length 59 [2023-12-22 16:51:34,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 16:51:34,173 INFO L495 AbstractCegarLoop]: Abstraction has 1383 states and 2211 transitions. [2023-12-22 16:51:34,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:51:34,173 INFO L276 IsEmpty]: Start isEmpty. Operand 1383 states and 2211 transitions. [2023-12-22 16:51:34,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-22 16:51:34,175 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 16:51:34,176 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 16:51:34,188 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-22 16:51:34,377 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 [2023-12-22 16:51:34,378 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 16:51:34,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 16:51:34,379 INFO L85 PathProgramCache]: Analyzing trace with hash -710014281, now seen corresponding path program 1 times [2023-12-22 16:51:34,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 16:51:34,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1991631529] [2023-12-22 16:51:34,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 16:51:34,380 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 [2023-12-22 16:51:34,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 16:51:34,381 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) [2023-12-22 16:51:34,382 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 [2023-12-22 16:51:34,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 16:51:34,458 INFO L262 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 16:51:34,461 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 16:51:34,558 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 16:51:34,558 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 16:51:34,559 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 16:51:34,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1991631529] [2023-12-22 16:51:34,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1991631529] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 16:51:34,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 16:51:34,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 16:51:34,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960417781] [2023-12-22 16:51:34,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 16:51:34,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 16:51:34,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 16:51:34,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 16:51:34,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 16:51:34,568 INFO L87 Difference]: Start difference. First operand 1383 states and 2211 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 2 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:51:48,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 16:51:48,953 INFO L93 Difference]: Finished difference Result 3455 states and 5736 transitions. [2023-12-22 16:51:48,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 16:51:48,953 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 2 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2023-12-22 16:51:48,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 16:51:48,959 INFO L225 Difference]: With dead ends: 3455 [2023-12-22 16:51:48,959 INFO L226 Difference]: Without dead ends: 2073 [2023-12-22 16:51:48,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 16:51:48,960 INFO L413 NwaCegarLoop]: 522 mSDtfsCounter, 714 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1702 mSolverCounterSat, 918 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 714 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 2620 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 918 IncrementalHoareTripleChecker+Valid, 1702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2023-12-22 16:51:48,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [714 Valid, 527 Invalid, 2620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [918 Valid, 1702 Invalid, 0 Unknown, 0 Unchecked, 14.3s Time] [2023-12-22 16:51:48,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2073 states. [2023-12-22 16:51:48,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2073 to 2073. [2023-12-22 16:51:48,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2073 states, 2072 states have (on average 1.3687258687258688) internal successors, (2836), 2072 states have internal predecessors, (2836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:51:48,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2073 states to 2073 states and 2836 transitions. [2023-12-22 16:51:48,984 INFO L78 Accepts]: Start accepts. Automaton has 2073 states and 2836 transitions. Word has length 124 [2023-12-22 16:51:48,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 16:51:48,985 INFO L495 AbstractCegarLoop]: Abstraction has 2073 states and 2836 transitions. [2023-12-22 16:51:48,985 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 2 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:51:48,985 INFO L276 IsEmpty]: Start isEmpty. Operand 2073 states and 2836 transitions. [2023-12-22 16:51:48,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-12-22 16:51:48,993 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 16:51:48,993 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 16:51:49,008 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 (4)] Ended with exit code 0 [2023-12-22 16:51:49,196 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 [2023-12-22 16:51:49,196 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 16:51:49,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 16:51:49,196 INFO L85 PathProgramCache]: Analyzing trace with hash 369157361, now seen corresponding path program 1 times [2023-12-22 16:51:49,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 16:51:49,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1627163181] [2023-12-22 16:51:49,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 16:51:49,198 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 [2023-12-22 16:51:49,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 16:51:49,199 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) [2023-12-22 16:51:49,205 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 [2023-12-22 16:51:49,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 16:51:49,280 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 16:51:49,283 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 16:51:49,580 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 16:51:49,581 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 16:51:49,581 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 16:51:49,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1627163181] [2023-12-22 16:51:49,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1627163181] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 16:51:49,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 16:51:49,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 16:51:49,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556631027] [2023-12-22 16:51:49,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 16:51:49,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 16:51:49,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 16:51:49,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 16:51:49,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 16:51:49,582 INFO L87 Difference]: Start difference. First operand 2073 states and 2836 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 2 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:52:07,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 16:52:07,428 INFO L93 Difference]: Finished difference Result 6215 states and 8505 transitions. [2023-12-22 16:52:07,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 16:52:07,430 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 2 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 152 [2023-12-22 16:52:07,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 16:52:07,440 INFO L225 Difference]: With dead ends: 6215 [2023-12-22 16:52:07,440 INFO L226 Difference]: Without dead ends: 4143 [2023-12-22 16:52:07,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 16:52:07,444 INFO L413 NwaCegarLoop]: 628 mSDtfsCounter, 599 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2126 mSolverCounterSat, 559 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 2685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 559 IncrementalHoareTripleChecker+Valid, 2126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.7s IncrementalHoareTripleChecker+Time [2023-12-22 16:52:07,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [599 Valid, 634 Invalid, 2685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [559 Valid, 2126 Invalid, 0 Unknown, 0 Unchecked, 17.7s Time] [2023-12-22 16:52:07,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4143 states. [2023-12-22 16:52:07,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4143 to 4143. [2023-12-22 16:52:07,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4143 states, 4142 states have (on average 1.209077740222115) internal successors, (5008), 4142 states have internal predecessors, (5008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:52:07,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4143 states to 4143 states and 5008 transitions. [2023-12-22 16:52:07,507 INFO L78 Accepts]: Start accepts. Automaton has 4143 states and 5008 transitions. Word has length 152 [2023-12-22 16:52:07,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 16:52:07,507 INFO L495 AbstractCegarLoop]: Abstraction has 4143 states and 5008 transitions. [2023-12-22 16:52:07,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 2 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:52:07,508 INFO L276 IsEmpty]: Start isEmpty. Operand 4143 states and 5008 transitions. [2023-12-22 16:52:07,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2023-12-22 16:52:07,511 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 16:52:07,512 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 16:52:07,524 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 (5)] Ended with exit code 0 [2023-12-22 16:52:07,715 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 [2023-12-22 16:52:07,716 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 16:52:07,716 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 16:52:07,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1438879658, now seen corresponding path program 1 times [2023-12-22 16:52:07,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 16:52:07,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [234850684] [2023-12-22 16:52:07,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 16:52:07,718 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 [2023-12-22 16:52:07,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 16:52:07,719 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) [2023-12-22 16:52:07,742 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 [2023-12-22 16:52:07,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 16:52:07,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 16:52:07,827 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 16:52:08,845 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 200 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-22 16:52:08,845 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 16:52:08,845 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 16:52:08,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [234850684] [2023-12-22 16:52:08,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [234850684] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 16:52:08,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 16:52:08,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 16:52:08,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279247110] [2023-12-22 16:52:08,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 16:52:08,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 16:52:08,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 16:52:08,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 16:52:08,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 16:52:08,847 INFO L87 Difference]: Start difference. First operand 4143 states and 5008 transitions. Second operand has 4 states, 4 states have (on average 82.0) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:52:21,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 16:52:21,231 INFO L93 Difference]: Finished difference Result 7648 states and 9372 transitions. [2023-12-22 16:52:21,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 16:52:21,233 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.0) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 334 [2023-12-22 16:52:21,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 16:52:21,242 INFO L225 Difference]: With dead ends: 7648 [2023-12-22 16:52:21,242 INFO L226 Difference]: Without dead ends: 4143 [2023-12-22 16:52:21,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 16:52:21,246 INFO L413 NwaCegarLoop]: 604 mSDtfsCounter, 529 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2760 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 2775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2023-12-22 16:52:21,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [529 Valid, 615 Invalid, 2775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2760 Invalid, 0 Unknown, 0 Unchecked, 12.3s Time] [2023-12-22 16:52:21,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4143 states. [2023-12-22 16:52:21,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4143 to 4143. [2023-12-22 16:52:21,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4143 states, 4142 states have (on average 1.2040077257363593) internal successors, (4987), 4142 states have internal predecessors, (4987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:52:21,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4143 states to 4143 states and 4987 transitions. [2023-12-22 16:52:21,294 INFO L78 Accepts]: Start accepts. Automaton has 4143 states and 4987 transitions. Word has length 334 [2023-12-22 16:52:21,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 16:52:21,294 INFO L495 AbstractCegarLoop]: Abstraction has 4143 states and 4987 transitions. [2023-12-22 16:52:21,294 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.0) internal successors, (328), 3 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:52:21,294 INFO L276 IsEmpty]: Start isEmpty. Operand 4143 states and 4987 transitions. [2023-12-22 16:52:21,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 668 [2023-12-22 16:52:21,301 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 16:52:21,302 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 16:52:21,305 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2023-12-22 16:52:21,505 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 [2023-12-22 16:52:21,505 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 16:52:21,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 16:52:21,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1351291545, now seen corresponding path program 1 times [2023-12-22 16:52:21,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 16:52:21,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [749514794] [2023-12-22 16:52:21,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 16:52:21,509 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 [2023-12-22 16:52:21,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 16:52:21,510 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) [2023-12-22 16:52:21,536 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 [2023-12-22 16:52:21,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 16:52:21,682 INFO L262 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 16:52:21,688 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 16:52:23,753 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2023-12-22 16:52:23,753 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 16:52:23,753 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 16:52:23,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [749514794] [2023-12-22 16:52:23,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [749514794] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 16:52:23,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 16:52:23,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 16:52:23,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164103433] [2023-12-22 16:52:23,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 16:52:23,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 16:52:23,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 16:52:23,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 16:52:23,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 16:52:23,758 INFO L87 Difference]: Start difference. First operand 4143 states and 4987 transitions. Second operand has 3 states, 3 states have (on average 192.0) internal successors, (576), 2 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:52:36,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 16:52:36,318 INFO L93 Difference]: Finished difference Result 6905 states and 8578 transitions. [2023-12-22 16:52:36,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 16:52:36,320 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 192.0) internal successors, (576), 2 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 667 [2023-12-22 16:52:36,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 16:52:36,330 INFO L225 Difference]: With dead ends: 6905 [2023-12-22 16:52:36,330 INFO L226 Difference]: Without dead ends: 4143 [2023-12-22 16:52:36,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 666 GetRequests, 665 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 16:52:36,338 INFO L413 NwaCegarLoop]: 628 mSDtfsCounter, 176 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1999 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 2009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2023-12-22 16:52:36,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 634 Invalid, 2009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1999 Invalid, 0 Unknown, 0 Unchecked, 12.5s Time] [2023-12-22 16:52:36,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4143 states. [2023-12-22 16:52:36,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4143 to 4143. [2023-12-22 16:52:36,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4143 states, 4142 states have (on average 1.2013520038628682) internal successors, (4976), 4142 states have internal predecessors, (4976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:52:36,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4143 states to 4143 states and 4976 transitions. [2023-12-22 16:52:36,425 INFO L78 Accepts]: Start accepts. Automaton has 4143 states and 4976 transitions. Word has length 667 [2023-12-22 16:52:36,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 16:52:36,426 INFO L495 AbstractCegarLoop]: Abstraction has 4143 states and 4976 transitions. [2023-12-22 16:52:36,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 192.0) internal successors, (576), 2 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:52:36,426 INFO L276 IsEmpty]: Start isEmpty. Operand 4143 states and 4976 transitions. [2023-12-22 16:52:36,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 874 [2023-12-22 16:52:36,441 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 16:52:36,442 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 16:52:36,451 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 [2023-12-22 16:52:36,647 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 [2023-12-22 16:52:36,647 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 16:52:36,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 16:52:36,648 INFO L85 PathProgramCache]: Analyzing trace with hash -228756011, now seen corresponding path program 1 times [2023-12-22 16:52:36,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 16:52:36,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [730750031] [2023-12-22 16:52:36,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 16:52:36,652 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 [2023-12-22 16:52:36,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 16:52:36,653 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) [2023-12-22 16:52:36,680 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 [2023-12-22 16:52:36,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 16:52:36,882 INFO L262 TraceCheckSpWp]: Trace formula consists of 924 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 16:52:36,889 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 16:52:37,946 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 0 proven. 116 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-22 16:52:37,946 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 16:52:38,357 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-22 16:52:38,357 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 16:52:38,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [730750031] [2023-12-22 16:52:38,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [730750031] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 16:52:38,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 16:52:38,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-22 16:52:38,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141909997] [2023-12-22 16:52:38,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 16:52:38,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 16:52:38,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 16:52:38,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 16:52:38,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 16:52:38,359 INFO L87 Difference]: Start difference. First operand 4143 states and 4976 transitions. Second operand has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:53:07,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:53:19,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 16:53:19,716 INFO L93 Difference]: Finished difference Result 8285 states and 10681 transitions. [2023-12-22 16:53:19,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 16:53:19,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 873 [2023-12-22 16:53:19,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 16:53:19,732 INFO L225 Difference]: With dead ends: 8285 [2023-12-22 16:53:19,733 INFO L226 Difference]: Without dead ends: 5523 [2023-12-22 16:53:19,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1744 GetRequests, 1741 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 16:53:19,736 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 726 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1977 mSolverCounterSat, 815 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 2792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 815 IncrementalHoareTripleChecker+Valid, 1977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 41.2s IncrementalHoareTripleChecker+Time [2023-12-22 16:53:19,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 277 Invalid, 2792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [815 Valid, 1977 Invalid, 0 Unknown, 0 Unchecked, 41.2s Time] [2023-12-22 16:53:19,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5523 states. [2023-12-22 16:53:19,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5523 to 5523. [2023-12-22 16:53:19,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5523 states, 5522 states have (on average 1.2260050706265846) internal successors, (6770), 5522 states have internal predecessors, (6770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:53:19,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5523 states to 5523 states and 6770 transitions. [2023-12-22 16:53:19,791 INFO L78 Accepts]: Start accepts. Automaton has 5523 states and 6770 transitions. Word has length 873 [2023-12-22 16:53:19,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 16:53:19,791 INFO L495 AbstractCegarLoop]: Abstraction has 5523 states and 6770 transitions. [2023-12-22 16:53:19,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 192.33333333333334) internal successors, (577), 3 states have internal predecessors, (577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:53:19,792 INFO L276 IsEmpty]: Start isEmpty. Operand 5523 states and 6770 transitions. [2023-12-22 16:53:19,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 946 [2023-12-22 16:53:19,798 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 16:53:19,798 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 16:53:19,818 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 (8)] Ended with exit code 0 [2023-12-22 16:53:20,002 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 [2023-12-22 16:53:20,002 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 16:53:20,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 16:53:20,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1104886033, now seen corresponding path program 1 times [2023-12-22 16:53:20,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 16:53:20,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2065516121] [2023-12-22 16:53:20,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 16:53:20,006 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 [2023-12-22 16:53:20,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 16:53:20,007 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) [2023-12-22 16:53:20,008 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 [2023-12-22 16:53:20,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 16:53:20,328 INFO L262 TraceCheckSpWp]: Trace formula consists of 1006 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 16:53:20,351 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 16:53:20,463 INFO L134 CoverageAnalysis]: Checked inductivity of 614 backedges. 317 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-22 16:53:20,463 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 16:53:20,463 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 16:53:20,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2065516121] [2023-12-22 16:53:20,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2065516121] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 16:53:20,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 16:53:20,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 16:53:20,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112734375] [2023-12-22 16:53:20,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 16:53:20,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 16:53:20,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 16:53:20,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 16:53:20,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 16:53:20,465 INFO L87 Difference]: Start difference. First operand 5523 states and 6770 transitions. Second operand has 3 states, 3 states have (on average 216.33333333333334) internal successors, (649), 3 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:53:39,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 16:53:39,244 INFO L93 Difference]: Finished difference Result 12425 states and 16075 transitions. [2023-12-22 16:53:39,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 16:53:39,258 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 216.33333333333334) internal successors, (649), 3 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 945 [2023-12-22 16:53:39,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 16:53:39,277 INFO L225 Difference]: With dead ends: 12425 [2023-12-22 16:53:39,277 INFO L226 Difference]: Without dead ends: 8283 [2023-12-22 16:53:39,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 944 GetRequests, 943 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 16:53:39,281 INFO L413 NwaCegarLoop]: 1191 mSDtfsCounter, 622 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 2306 mSolverCounterSat, 433 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 1196 SdHoareTripleChecker+Invalid, 2739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 433 IncrementalHoareTripleChecker+Valid, 2306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.6s IncrementalHoareTripleChecker+Time [2023-12-22 16:53:39,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 1196 Invalid, 2739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [433 Valid, 2306 Invalid, 0 Unknown, 0 Unchecked, 18.6s Time] [2023-12-22 16:53:39,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8283 states. [2023-12-22 16:53:39,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8283 to 8283. [2023-12-22 16:53:39,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8283 states, 8282 states have (on average 1.207437816952427) internal successors, (10000), 8282 states have internal predecessors, (10000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:53:39,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8283 states to 8283 states and 10000 transitions. [2023-12-22 16:53:39,375 INFO L78 Accepts]: Start accepts. Automaton has 8283 states and 10000 transitions. Word has length 945 [2023-12-22 16:53:39,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 16:53:39,376 INFO L495 AbstractCegarLoop]: Abstraction has 8283 states and 10000 transitions. [2023-12-22 16:53:39,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 216.33333333333334) internal successors, (649), 3 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:53:39,376 INFO L276 IsEmpty]: Start isEmpty. Operand 8283 states and 10000 transitions. [2023-12-22 16:53:39,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1007 [2023-12-22 16:53:39,384 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 16:53:39,386 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 16:53:39,392 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-12-22 16:53:39,590 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 [2023-12-22 16:53:39,591 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 16:53:39,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 16:53:39,591 INFO L85 PathProgramCache]: Analyzing trace with hash -2108596197, now seen corresponding path program 1 times [2023-12-22 16:53:39,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 16:53:39,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [588069550] [2023-12-22 16:53:39,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 16:53:39,594 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 [2023-12-22 16:53:39,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 16:53:39,595 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) [2023-12-22 16:53:39,596 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 [2023-12-22 16:53:39,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 16:53:39,854 INFO L262 TraceCheckSpWp]: Trace formula consists of 1078 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 16:53:39,864 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 16:53:40,993 INFO L134 CoverageAnalysis]: Checked inductivity of 858 backedges. 367 proven. 0 refuted. 0 times theorem prover too weak. 491 trivial. 0 not checked. [2023-12-22 16:53:40,994 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 16:53:40,994 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 16:53:40,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [588069550] [2023-12-22 16:53:40,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [588069550] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 16:53:40,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 16:53:40,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 16:53:40,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995987528] [2023-12-22 16:53:40,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 16:53:40,995 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 16:53:40,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 16:53:40,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 16:53:40,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 16:53:40,996 INFO L87 Difference]: Start difference. First operand 8283 states and 10000 transitions. Second operand has 3 states, 3 states have (on average 195.0) internal successors, (585), 2 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:54:00,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 16:54:00,076 INFO L93 Difference]: Finished difference Result 20705 states and 25765 transitions. [2023-12-22 16:54:00,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 16:54:00,076 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 195.0) internal successors, (585), 2 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1006 [2023-12-22 16:54:00,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 16:54:00,093 INFO L225 Difference]: With dead ends: 20705 [2023-12-22 16:54:00,093 INFO L226 Difference]: Without dead ends: 13803 [2023-12-22 16:54:00,097 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1005 GetRequests, 1004 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 16:54:00,098 INFO L413 NwaCegarLoop]: 589 mSDtfsCounter, 180 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2223 mSolverCounterSat, 514 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 2737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 514 IncrementalHoareTripleChecker+Valid, 2223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.9s IncrementalHoareTripleChecker+Time [2023-12-22 16:54:00,098 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 595 Invalid, 2737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [514 Valid, 2223 Invalid, 0 Unknown, 0 Unchecked, 18.9s Time] [2023-12-22 16:54:00,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13803 states. [2023-12-22 16:54:00,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13803 to 13803. [2023-12-22 16:54:00,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13803 states, 13802 states have (on average 1.1609911607013477) internal successors, (16024), 13802 states have internal predecessors, (16024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:54:00,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13803 states to 13803 states and 16024 transitions. [2023-12-22 16:54:00,215 INFO L78 Accepts]: Start accepts. Automaton has 13803 states and 16024 transitions. Word has length 1006 [2023-12-22 16:54:00,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 16:54:00,216 INFO L495 AbstractCegarLoop]: Abstraction has 13803 states and 16024 transitions. [2023-12-22 16:54:00,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 195.0) internal successors, (585), 2 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:54:00,216 INFO L276 IsEmpty]: Start isEmpty. Operand 13803 states and 16024 transitions. [2023-12-22 16:54:00,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1096 [2023-12-22 16:54:00,225 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 16:54:00,225 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 16:54:00,242 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 [2023-12-22 16:54:00,441 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 [2023-12-22 16:54:00,442 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 16:54:00,442 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 16:54:00,442 INFO L85 PathProgramCache]: Analyzing trace with hash 443281321, now seen corresponding path program 1 times [2023-12-22 16:54:00,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 16:54:00,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1337894030] [2023-12-22 16:54:00,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 16:54:00,446 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 [2023-12-22 16:54:00,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 16:54:00,447 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) [2023-12-22 16:54:00,447 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 [2023-12-22 16:54:00,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 16:54:00,738 INFO L262 TraceCheckSpWp]: Trace formula consists of 1165 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 16:54:00,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 16:54:03,892 INFO L134 CoverageAnalysis]: Checked inductivity of 1057 backedges. 350 proven. 396 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked. [2023-12-22 16:54:03,892 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 16:54:05,840 INFO L134 CoverageAnalysis]: Checked inductivity of 1057 backedges. 695 proven. 51 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked. [2023-12-22 16:54:05,840 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 16:54:05,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1337894030] [2023-12-22 16:54:05,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1337894030] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 16:54:05,841 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 16:54:05,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-12-22 16:54:05,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261731599] [2023-12-22 16:54:05,841 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 16:54:05,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 16:54:05,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 16:54:05,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 16:54:05,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-22 16:54:05,843 INFO L87 Difference]: Start difference. First operand 13803 states and 16024 transitions. Second operand has 8 states, 8 states have (on average 184.625) internal successors, (1477), 7 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:54:46,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 16:54:46,419 INFO L93 Difference]: Finished difference Result 30575 states and 35326 transitions. [2023-12-22 16:54:46,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-22 16:54:46,420 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 184.625) internal successors, (1477), 7 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1095 [2023-12-22 16:54:46,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 16:54:46,441 INFO L225 Difference]: With dead ends: 30575 [2023-12-22 16:54:46,441 INFO L226 Difference]: Without dead ends: 17943 [2023-12-22 16:54:46,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2189 GetRequests, 2182 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2023-12-22 16:54:46,448 INFO L413 NwaCegarLoop]: 532 mSDtfsCounter, 2198 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 10081 mSolverCounterSat, 1160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2198 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 11241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1160 IncrementalHoareTripleChecker+Valid, 10081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.2s IncrementalHoareTripleChecker+Time [2023-12-22 16:54:46,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2198 Valid, 600 Invalid, 11241 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1160 Valid, 10081 Invalid, 0 Unknown, 0 Unchecked, 40.2s Time] [2023-12-22 16:54:46,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17943 states. [2023-12-22 16:54:46,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17943 to 16563. [2023-12-22 16:54:46,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16563 states, 16562 states have (on average 1.0745079096727448) internal successors, (17796), 16562 states have internal predecessors, (17796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:54:46,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16563 states to 16563 states and 17796 transitions. [2023-12-22 16:54:46,590 INFO L78 Accepts]: Start accepts. Automaton has 16563 states and 17796 transitions. Word has length 1095 [2023-12-22 16:54:46,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 16:54:46,590 INFO L495 AbstractCegarLoop]: Abstraction has 16563 states and 17796 transitions. [2023-12-22 16:54:46,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 184.625) internal successors, (1477), 7 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:54:46,591 INFO L276 IsEmpty]: Start isEmpty. Operand 16563 states and 17796 transitions. [2023-12-22 16:54:46,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1106 [2023-12-22 16:54:46,599 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 16:54:46,600 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 16:54:46,611 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 [2023-12-22 16:54:46,813 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 [2023-12-22 16:54:46,814 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 16:54:46,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 16:54:46,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1883287208, now seen corresponding path program 1 times [2023-12-22 16:54:46,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 16:54:46,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [122474158] [2023-12-22 16:54:46,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 16:54:46,819 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 [2023-12-22 16:54:46,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 16:54:46,819 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) [2023-12-22 16:54:46,827 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 [2023-12-22 16:54:47,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 16:54:47,098 INFO L262 TraceCheckSpWp]: Trace formula consists of 1174 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 16:54:47,136 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 16:54:50,034 INFO L134 CoverageAnalysis]: Checked inductivity of 1084 backedges. 231 proven. 556 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-22 16:54:50,034 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 16:54:51,037 INFO L134 CoverageAnalysis]: Checked inductivity of 1084 backedges. 509 proven. 0 refuted. 0 times theorem prover too weak. 575 trivial. 0 not checked. [2023-12-22 16:54:51,038 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 16:54:51,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [122474158] [2023-12-22 16:54:51,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [122474158] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 16:54:51,038 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 16:54:51,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-12-22 16:54:51,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993129674] [2023-12-22 16:54:51,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 16:54:51,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 16:54:51,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 16:54:51,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 16:54:51,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-22 16:54:51,057 INFO L87 Difference]: Start difference. First operand 16563 states and 17796 transitions. Second operand has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:55:21,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 16:55:21,134 INFO L93 Difference]: Finished difference Result 37265 states and 40395 transitions. [2023-12-22 16:55:21,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 16:55:21,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1105 [2023-12-22 16:55:21,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 16:55:21,166 INFO L225 Difference]: With dead ends: 37265 [2023-12-22 16:55:21,166 INFO L226 Difference]: Without dead ends: 23463 [2023-12-22 16:55:21,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2208 GetRequests, 2204 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-22 16:55:21,179 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 622 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1723 mSolverCounterSat, 608 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 2331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 608 IncrementalHoareTripleChecker+Valid, 1723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.9s IncrementalHoareTripleChecker+Time [2023-12-22 16:55:21,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 52 Invalid, 2331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [608 Valid, 1723 Invalid, 0 Unknown, 0 Unchecked, 29.9s Time] [2023-12-22 16:55:21,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23463 states. [2023-12-22 16:55:21,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23463 to 23463. [2023-12-22 16:55:21,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23463 states, 23462 states have (on average 1.0733100332452477) internal successors, (25182), 23462 states have internal predecessors, (25182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:55:21,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23463 states to 23463 states and 25182 transitions. [2023-12-22 16:55:21,386 INFO L78 Accepts]: Start accepts. Automaton has 23463 states and 25182 transitions. Word has length 1105 [2023-12-22 16:55:21,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 16:55:21,386 INFO L495 AbstractCegarLoop]: Abstraction has 23463 states and 25182 transitions. [2023-12-22 16:55:21,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 223.33333333333334) internal successors, (670), 3 states have internal predecessors, (670), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:55:21,387 INFO L276 IsEmpty]: Start isEmpty. Operand 23463 states and 25182 transitions. [2023-12-22 16:55:21,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1120 [2023-12-22 16:55:21,455 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 16:55:21,455 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 16:55:21,478 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 [2023-12-22 16:55:21,656 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 [2023-12-22 16:55:21,656 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 16:55:21,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 16:55:21,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1221008773, now seen corresponding path program 1 times [2023-12-22 16:55:21,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 16:55:21,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2122023391] [2023-12-22 16:55:21,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 16:55:21,660 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 [2023-12-22 16:55:21,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 16:55:21,661 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) [2023-12-22 16:55:21,663 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 (13)] Waiting until timeout for monitored process [2023-12-22 16:55:21,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 16:55:21,931 INFO L262 TraceCheckSpWp]: Trace formula consists of 1189 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 16:55:21,937 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 16:55:22,016 INFO L134 CoverageAnalysis]: Checked inductivity of 1126 backedges. 231 proven. 0 refuted. 0 times theorem prover too weak. 895 trivial. 0 not checked. [2023-12-22 16:55:22,016 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 16:55:22,016 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 16:55:22,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2122023391] [2023-12-22 16:55:22,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2122023391] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 16:55:22,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 16:55:22,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 16:55:22,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297471359] [2023-12-22 16:55:22,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 16:55:22,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 16:55:22,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 16:55:22,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 16:55:22,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 16:55:22,018 INFO L87 Difference]: Start difference. First operand 23463 states and 25182 transitions. Second operand has 3 states, 3 states have (on average 192.66666666666666) internal successors, (578), 3 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:55:36,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 16:55:36,999 INFO L93 Difference]: Finished difference Result 49685 states and 53776 transitions. [2023-12-22 16:55:37,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 16:55:37,017 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 192.66666666666666) internal successors, (578), 3 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1119 [2023-12-22 16:55:37,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 16:55:37,067 INFO L225 Difference]: With dead ends: 49685 [2023-12-22 16:55:37,067 INFO L226 Difference]: Without dead ends: 28983 [2023-12-22 16:55:37,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1118 GetRequests, 1117 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 16:55:37,089 INFO L413 NwaCegarLoop]: 1035 mSDtfsCounter, 634 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1808 mSolverCounterSat, 321 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 1041 SdHoareTripleChecker+Invalid, 2129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 321 IncrementalHoareTripleChecker+Valid, 1808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2023-12-22 16:55:37,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [634 Valid, 1041 Invalid, 2129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [321 Valid, 1808 Invalid, 0 Unknown, 0 Unchecked, 14.8s Time] [2023-12-22 16:55:37,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28983 states. [2023-12-22 16:55:37,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28983 to 28983. [2023-12-22 16:55:37,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28983 states, 28982 states have (on average 1.0507901456076185) internal successors, (30454), 28982 states have internal predecessors, (30454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:55:37,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28983 states to 28983 states and 30454 transitions. [2023-12-22 16:55:37,531 INFO L78 Accepts]: Start accepts. Automaton has 28983 states and 30454 transitions. Word has length 1119 [2023-12-22 16:55:37,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 16:55:37,532 INFO L495 AbstractCegarLoop]: Abstraction has 28983 states and 30454 transitions. [2023-12-22 16:55:37,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 192.66666666666666) internal successors, (578), 3 states have internal predecessors, (578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:55:37,532 INFO L276 IsEmpty]: Start isEmpty. Operand 28983 states and 30454 transitions. [2023-12-22 16:55:37,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1220 [2023-12-22 16:55:37,545 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 16:55:37,545 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 16:55:37,572 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-12-22 16:55:37,751 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 [2023-12-22 16:55:37,751 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 16:55:37,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 16:55:37,752 INFO L85 PathProgramCache]: Analyzing trace with hash -430067861, now seen corresponding path program 1 times [2023-12-22 16:55:37,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 16:55:37,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [573638848] [2023-12-22 16:55:37,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 16:55:37,755 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 [2023-12-22 16:55:37,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 16:55:37,777 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) [2023-12-22 16:55:37,804 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 [2023-12-22 16:55:38,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 16:55:38,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 1303 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 16:55:38,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 16:55:38,306 INFO L134 CoverageAnalysis]: Checked inductivity of 1569 backedges. 936 proven. 0 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2023-12-22 16:55:38,306 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 16:55:38,306 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 16:55:38,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [573638848] [2023-12-22 16:55:38,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [573638848] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 16:55:38,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 16:55:38,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 16:55:38,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369129661] [2023-12-22 16:55:38,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 16:55:38,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 16:55:38,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 16:55:38,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 16:55:38,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 16:55:38,308 INFO L87 Difference]: Start difference. First operand 28983 states and 30454 transitions. Second operand has 3 states, 3 states have (on average 242.33333333333334) internal successors, (727), 3 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:55:53,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 16:55:53,717 INFO L93 Difference]: Finished difference Result 64865 states and 68624 transitions. [2023-12-22 16:55:53,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 16:55:53,720 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 242.33333333333334) internal successors, (727), 3 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1219 [2023-12-22 16:55:53,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 16:55:53,754 INFO L225 Difference]: With dead ends: 64865 [2023-12-22 16:55:53,754 INFO L226 Difference]: Without dead ends: 37953 [2023-12-22 16:55:53,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1218 GetRequests, 1217 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 16:55:53,846 INFO L413 NwaCegarLoop]: 1055 mSDtfsCounter, 605 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1932 mSolverCounterSat, 284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 1061 SdHoareTripleChecker+Invalid, 2216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 284 IncrementalHoareTripleChecker+Valid, 1932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2023-12-22 16:55:53,846 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [605 Valid, 1061 Invalid, 2216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [284 Valid, 1932 Invalid, 0 Unknown, 0 Unchecked, 15.1s Time] [2023-12-22 16:55:53,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37953 states. [2023-12-22 16:55:54,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37953 to 37953. [2023-12-22 16:55:54,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37953 states, 37952 states have (on average 1.0489565767284992) internal successors, (39810), 37952 states have internal predecessors, (39810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:55:54,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37953 states to 37953 states and 39810 transitions. [2023-12-22 16:55:54,376 INFO L78 Accepts]: Start accepts. Automaton has 37953 states and 39810 transitions. Word has length 1219 [2023-12-22 16:55:54,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 16:55:54,377 INFO L495 AbstractCegarLoop]: Abstraction has 37953 states and 39810 transitions. [2023-12-22 16:55:54,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 242.33333333333334) internal successors, (727), 3 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:55:54,377 INFO L276 IsEmpty]: Start isEmpty. Operand 37953 states and 39810 transitions. [2023-12-22 16:55:54,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1224 [2023-12-22 16:55:54,390 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 16:55:54,390 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 16:55:54,403 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2023-12-22 16:55:54,596 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 [2023-12-22 16:55:54,597 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 16:55:54,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 16:55:54,597 INFO L85 PathProgramCache]: Analyzing trace with hash 947168335, now seen corresponding path program 1 times [2023-12-22 16:55:54,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 16:55:54,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1492249078] [2023-12-22 16:55:54,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 16:55:54,601 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 [2023-12-22 16:55:54,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 16:55:54,603 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) [2023-12-22 16:55:54,604 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 [2023-12-22 16:55:54,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 16:55:54,923 INFO L262 TraceCheckSpWp]: Trace formula consists of 1303 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-22 16:55:54,934 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 16:55:56,173 INFO L134 CoverageAnalysis]: Checked inductivity of 1599 backedges. 289 proven. 1013 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-22 16:55:56,173 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 16:56:01,006 INFO L134 CoverageAnalysis]: Checked inductivity of 1599 backedges. 920 proven. 104 refuted. 0 times theorem prover too weak. 575 trivial. 0 not checked. [2023-12-22 16:56:01,006 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 16:56:01,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1492249078] [2023-12-22 16:56:01,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1492249078] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 16:56:01,006 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 16:56:01,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2023-12-22 16:56:01,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110785005] [2023-12-22 16:56:01,007 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 16:56:01,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-22 16:56:01,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 16:56:01,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-22 16:56:01,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-12-22 16:56:01,010 INFO L87 Difference]: Start difference. First operand 37953 states and 39810 transitions. Second operand has 8 states, 8 states have (on average 207.0) internal successors, (1656), 8 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:57:29,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:57:41,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.66s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:57:43,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:57:50,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:58:00,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:58:07,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:58:10,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:58:23,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.62s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:58:27,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:58:37,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:58:44,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:58:48,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:59:17,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 16:59:17,879 INFO L93 Difference]: Finished difference Result 91775 states and 97535 transitions. [2023-12-22 16:59:17,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-22 16:59:17,891 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 207.0) internal successors, (1656), 8 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1223 [2023-12-22 16:59:17,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 16:59:17,949 INFO L225 Difference]: With dead ends: 91775 [2023-12-22 16:59:17,949 INFO L226 Difference]: Without dead ends: 56583 [2023-12-22 16:59:17,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2446 GetRequests, 2439 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-12-22 16:59:17,969 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 6042 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 12808 mSolverCounterSat, 1650 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 180.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6042 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 14458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1650 IncrementalHoareTripleChecker+Valid, 12808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 196.0s IncrementalHoareTripleChecker+Time [2023-12-22 16:59:17,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6042 Valid, 89 Invalid, 14458 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1650 Valid, 12808 Invalid, 0 Unknown, 0 Unchecked, 196.0s Time] [2023-12-22 16:59:18,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56583 states. [2023-12-22 16:59:18,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56583 to 45543. [2023-12-22 16:59:18,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45543 states, 45542 states have (on average 1.053730622282728) internal successors, (47989), 45542 states have internal predecessors, (47989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:59:18,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45543 states to 45543 states and 47989 transitions. [2023-12-22 16:59:18,573 INFO L78 Accepts]: Start accepts. Automaton has 45543 states and 47989 transitions. Word has length 1223 [2023-12-22 16:59:18,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 16:59:18,574 INFO L495 AbstractCegarLoop]: Abstraction has 45543 states and 47989 transitions. [2023-12-22 16:59:18,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 207.0) internal successors, (1656), 8 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:59:18,575 INFO L276 IsEmpty]: Start isEmpty. Operand 45543 states and 47989 transitions. [2023-12-22 16:59:18,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1383 [2023-12-22 16:59:18,588 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 16:59:18,589 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 16:59:18,597 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 (15)] Ended with exit code 0 [2023-12-22 16:59:18,797 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 [2023-12-22 16:59:18,798 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 16:59:18,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 16:59:18,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1411148325, now seen corresponding path program 1 times [2023-12-22 16:59:18,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 16:59:18,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [358634600] [2023-12-22 16:59:18,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 16:59:18,802 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 [2023-12-22 16:59:18,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 16:59:18,804 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) [2023-12-22 16:59:18,805 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 [2023-12-22 16:59:19,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 16:59:19,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 1462 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 16:59:19,272 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 16:59:19,353 INFO L134 CoverageAnalysis]: Checked inductivity of 1949 backedges. 289 proven. 0 refuted. 0 times theorem prover too weak. 1660 trivial. 0 not checked. [2023-12-22 16:59:19,354 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 16:59:19,354 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 16:59:19,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [358634600] [2023-12-22 16:59:19,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [358634600] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 16:59:19,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 16:59:19,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 16:59:19,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541947383] [2023-12-22 16:59:19,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 16:59:19,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 16:59:19,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 16:59:19,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 16:59:19,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 16:59:19,355 INFO L87 Difference]: Start difference. First operand 45543 states and 47989 transitions. Second operand has 3 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:59:35,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 16:59:35,250 INFO L93 Difference]: Finished difference Result 94535 states and 100822 transitions. [2023-12-22 16:59:35,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 16:59:35,268 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1382 [2023-12-22 16:59:35,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 16:59:35,317 INFO L225 Difference]: With dead ends: 94535 [2023-12-22 16:59:35,317 INFO L226 Difference]: Without dead ends: 48993 [2023-12-22 16:59:35,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1381 GetRequests, 1380 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 16:59:35,337 INFO L413 NwaCegarLoop]: 1000 mSDtfsCounter, 646 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1748 mSolverCounterSat, 324 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 1006 SdHoareTripleChecker+Invalid, 2072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 324 IncrementalHoareTripleChecker+Valid, 1748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2023-12-22 16:59:35,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [646 Valid, 1006 Invalid, 2072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [324 Valid, 1748 Invalid, 0 Unknown, 0 Unchecked, 15.5s Time] [2023-12-22 16:59:35,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48993 states. [2023-12-22 16:59:35,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48993 to 48993. [2023-12-22 16:59:35,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48993 states, 48992 states have (on average 1.0533964728935337) internal successors, (51608), 48992 states have internal predecessors, (51608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:59:35,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48993 states to 48993 states and 51608 transitions. [2023-12-22 16:59:35,867 INFO L78 Accepts]: Start accepts. Automaton has 48993 states and 51608 transitions. Word has length 1382 [2023-12-22 16:59:35,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 16:59:35,867 INFO L495 AbstractCegarLoop]: Abstraction has 48993 states and 51608 transitions. [2023-12-22 16:59:35,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 193.0) internal successors, (579), 3 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:59:35,868 INFO L276 IsEmpty]: Start isEmpty. Operand 48993 states and 51608 transitions. [2023-12-22 16:59:35,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1449 [2023-12-22 16:59:35,883 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 16:59:35,884 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 16:59:35,891 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-12-22 16:59:36,091 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 [2023-12-22 16:59:36,091 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 16:59:36,091 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 16:59:36,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1583975265, now seen corresponding path program 1 times [2023-12-22 16:59:36,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 16:59:36,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [102582580] [2023-12-22 16:59:36,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 16:59:36,096 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 [2023-12-22 16:59:36,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 16:59:36,106 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) [2023-12-22 16:59:36,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-12-22 16:59:36,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 16:59:36,517 INFO L262 TraceCheckSpWp]: Trace formula consists of 1538 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 16:59:36,589 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 16:59:38,242 INFO L134 CoverageAnalysis]: Checked inductivity of 2337 backedges. 767 proven. 1215 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2023-12-22 16:59:38,243 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 16:59:39,104 INFO L134 CoverageAnalysis]: Checked inductivity of 2337 backedges. 1034 proven. 0 refuted. 0 times theorem prover too weak. 1303 trivial. 0 not checked. [2023-12-22 16:59:39,104 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 16:59:39,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [102582580] [2023-12-22 16:59:39,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [102582580] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 16:59:39,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 16:59:39,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-22 16:59:39,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139044341] [2023-12-22 16:59:39,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 16:59:39,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 16:59:39,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 16:59:39,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 16:59:39,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-22 16:59:39,106 INFO L87 Difference]: Start difference. First operand 48993 states and 51608 transitions. Second operand has 3 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 16:59:54,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:00:12,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.43s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:00:17,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:00:19,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:00:19,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:00:19,977 INFO L93 Difference]: Finished difference Result 98675 states and 104928 transitions. [2023-12-22 17:00:19,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 17:00:19,977 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1448 [2023-12-22 17:00:19,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:00:20,036 INFO L225 Difference]: With dead ends: 98675 [2023-12-22 17:00:20,037 INFO L226 Difference]: Without dead ends: 54513 [2023-12-22 17:00:20,056 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2894 GetRequests, 2889 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-12-22 17:00:20,057 INFO L413 NwaCegarLoop]: 859 mSDtfsCounter, 660 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1816 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 864 SdHoareTripleChecker+Invalid, 2134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 1816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.5s IncrementalHoareTripleChecker+Time [2023-12-22 17:00:20,057 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [660 Valid, 864 Invalid, 2134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 1816 Invalid, 0 Unknown, 0 Unchecked, 40.5s Time] [2023-12-22 17:00:20,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54513 states. [2023-12-22 17:00:20,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54513 to 54513. [2023-12-22 17:00:20,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54513 states, 54512 states have (on average 1.0524655121808042) internal successors, (57372), 54512 states have internal predecessors, (57372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:00:20,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54513 states to 54513 states and 57372 transitions. [2023-12-22 17:00:20,628 INFO L78 Accepts]: Start accepts. Automaton has 54513 states and 57372 transitions. Word has length 1448 [2023-12-22 17:00:20,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:00:20,629 INFO L495 AbstractCegarLoop]: Abstraction has 54513 states and 57372 transitions. [2023-12-22 17:00:20,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 230.33333333333334) internal successors, (691), 3 states have internal predecessors, (691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:00:20,629 INFO L276 IsEmpty]: Start isEmpty. Operand 54513 states and 57372 transitions. [2023-12-22 17:00:20,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1453 [2023-12-22 17:00:20,645 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:00:20,645 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:00:20,652 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 [2023-12-22 17:00:20,847 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 [2023-12-22 17:00:20,848 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:00:20,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:00:20,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1216292367, now seen corresponding path program 1 times [2023-12-22 17:00:20,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:00:20,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [229664505] [2023-12-22 17:00:20,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:00:20,853 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 [2023-12-22 17:00:20,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:00:20,872 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) [2023-12-22 17:00:20,873 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 [2023-12-22 17:00:21,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:00:21,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 1546 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 17:00:21,416 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:00:21,608 INFO L134 CoverageAnalysis]: Checked inductivity of 2258 backedges. 808 proven. 0 refuted. 0 times theorem prover too weak. 1450 trivial. 0 not checked. [2023-12-22 17:00:21,609 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:00:21,609 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:00:21,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [229664505] [2023-12-22 17:00:21,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [229664505] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:00:21,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:00:21,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 17:00:21,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554539442] [2023-12-22 17:00:21,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:00:21,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 17:00:21,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:00:21,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 17:00:21,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:00:21,611 INFO L87 Difference]: Start difference. First operand 54513 states and 57372 transitions. Second operand has 3 states, 3 states have (on average 227.33333333333334) internal successors, (682), 3 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:00:37,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:00:37,795 INFO L93 Difference]: Finished difference Result 118685 states and 126215 transitions. [2023-12-22 17:00:37,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 17:00:37,795 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 227.33333333333334) internal successors, (682), 3 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1452 [2023-12-22 17:00:37,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:00:37,862 INFO L225 Difference]: With dead ends: 118685 [2023-12-22 17:00:37,863 INFO L226 Difference]: Without dead ends: 69003 [2023-12-22 17:00:37,891 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1451 GetRequests, 1450 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:00:37,891 INFO L413 NwaCegarLoop]: 935 mSDtfsCounter, 607 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1865 mSolverCounterSat, 252 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 607 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 2117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 252 IncrementalHoareTripleChecker+Valid, 1865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.8s IncrementalHoareTripleChecker+Time [2023-12-22 17:00:37,891 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [607 Valid, 941 Invalid, 2117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [252 Valid, 1865 Invalid, 0 Unknown, 0 Unchecked, 15.8s Time] [2023-12-22 17:00:37,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69003 states. [2023-12-22 17:00:38,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69003 to 69003. [2023-12-22 17:00:38,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69003 states, 69002 states have (on average 1.0507811367786442) internal successors, (72506), 69002 states have internal predecessors, (72506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:00:38,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69003 states to 69003 states and 72506 transitions. [2023-12-22 17:00:38,737 INFO L78 Accepts]: Start accepts. Automaton has 69003 states and 72506 transitions. Word has length 1452 [2023-12-22 17:00:38,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:00:38,738 INFO L495 AbstractCegarLoop]: Abstraction has 69003 states and 72506 transitions. [2023-12-22 17:00:38,738 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 227.33333333333334) internal successors, (682), 3 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:00:38,738 INFO L276 IsEmpty]: Start isEmpty. Operand 69003 states and 72506 transitions. [2023-12-22 17:00:38,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1463 [2023-12-22 17:00:38,754 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:00:38,755 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:00:38,763 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 [2023-12-22 17:00:38,961 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 [2023-12-22 17:00:38,961 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:00:38,962 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:00:38,962 INFO L85 PathProgramCache]: Analyzing trace with hash -2080882555, now seen corresponding path program 1 times [2023-12-22 17:00:38,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:00:38,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [479289096] [2023-12-22 17:00:38,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:00:38,968 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 [2023-12-22 17:00:38,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:00:38,969 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) [2023-12-22 17:00:38,970 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 [2023-12-22 17:00:39,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:00:39,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 1544 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-22 17:00:39,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:00:41,563 INFO L134 CoverageAnalysis]: Checked inductivity of 2044 backedges. 0 proven. 1747 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-22 17:00:41,563 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 17:00:56,037 INFO L134 CoverageAnalysis]: Checked inductivity of 2044 backedges. 1404 proven. 65 refuted. 0 times theorem prover too weak. 575 trivial. 0 not checked. [2023-12-22 17:00:56,037 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:00:56,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [479289096] [2023-12-22 17:00:56,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [479289096] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 17:00:56,038 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 17:00:56,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2023-12-22 17:00:56,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539219943] [2023-12-22 17:00:56,038 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 17:00:56,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-22 17:00:56,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:00:56,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-22 17:00:56,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-12-22 17:00:56,041 INFO L87 Difference]: Start difference. First operand 69003 states and 72506 transitions. Second operand has 11 states, 11 states have (on average 198.63636363636363) internal successors, (2185), 11 states have internal predecessors, (2185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:03:53,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 17:05:05,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:05:05,353 INFO L93 Difference]: Finished difference Result 163002 states and 173183 transitions. [2023-12-22 17:05:05,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-22 17:05:05,357 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 198.63636363636363) internal successors, (2185), 11 states have internal predecessors, (2185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1462 [2023-12-22 17:05:05,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:05:05,561 INFO L225 Difference]: With dead ends: 163002 [2023-12-22 17:05:05,561 INFO L226 Difference]: Without dead ends: 96603 [2023-12-22 17:05:05,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2936 GetRequests, 2920 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2023-12-22 17:05:05,607 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 7114 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 39145 mSolverCounterSat, 1998 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 224.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7114 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 41143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1998 IncrementalHoareTripleChecker+Valid, 39145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 247.4s IncrementalHoareTripleChecker+Time [2023-12-22 17:05:05,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7114 Valid, 320 Invalid, 41143 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1998 Valid, 39145 Invalid, 0 Unknown, 0 Unchecked, 247.4s Time] [2023-12-22 17:05:05,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96603 states. [2023-12-22 17:05:06,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96603 to 88323. [2023-12-22 17:05:06,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88323 states, 88322 states have (on average 1.0526595865129866) internal successors, (92973), 88322 states have internal predecessors, (92973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:05:06,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88323 states to 88323 states and 92973 transitions. [2023-12-22 17:05:06,620 INFO L78 Accepts]: Start accepts. Automaton has 88323 states and 92973 transitions. Word has length 1462 [2023-12-22 17:05:06,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:05:06,621 INFO L495 AbstractCegarLoop]: Abstraction has 88323 states and 92973 transitions. [2023-12-22 17:05:06,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 198.63636363636363) internal successors, (2185), 11 states have internal predecessors, (2185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:05:06,621 INFO L276 IsEmpty]: Start isEmpty. Operand 88323 states and 92973 transitions. [2023-12-22 17:05:06,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1585 [2023-12-22 17:05:06,642 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:05:06,648 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:05:06,659 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2023-12-22 17:05:06,854 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 [2023-12-22 17:05:06,854 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:05:06,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:05:06,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1886714515, now seen corresponding path program 1 times [2023-12-22 17:05:06,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:05:06,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1924895022] [2023-12-22 17:05:06,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:05:06,860 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 [2023-12-22 17:05:06,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:05:06,861 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) [2023-12-22 17:05:06,865 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 [2023-12-22 17:05:07,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:05:07,373 INFO L262 TraceCheckSpWp]: Trace formula consists of 1665 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 17:05:07,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:05:07,553 INFO L134 CoverageAnalysis]: Checked inductivity of 2266 backedges. 660 proven. 0 refuted. 0 times theorem prover too weak. 1606 trivial. 0 not checked. [2023-12-22 17:05:07,554 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 17:05:07,554 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 17:05:07,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1924895022] [2023-12-22 17:05:07,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1924895022] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 17:05:07,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 17:05:07,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 17:05:07,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676252004] [2023-12-22 17:05:07,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 17:05:07,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 17:05:07,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 17:05:07,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 17:05:07,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:05:07,556 INFO L87 Difference]: Start difference. First operand 88323 states and 92973 transitions. Second operand has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:05:23,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 17:05:23,077 INFO L93 Difference]: Finished difference Result 190445 states and 200947 transitions. [2023-12-22 17:05:23,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 17:05:23,077 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1584 [2023-12-22 17:05:23,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 17:05:23,203 INFO L225 Difference]: With dead ends: 190445 [2023-12-22 17:05:23,203 INFO L226 Difference]: Without dead ends: 102813 [2023-12-22 17:05:23,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1583 GetRequests, 1582 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 17:05:23,256 INFO L413 NwaCegarLoop]: 1019 mSDtfsCounter, 599 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1891 mSolverCounterSat, 243 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 1025 SdHoareTripleChecker+Invalid, 2134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 243 IncrementalHoareTripleChecker+Valid, 1891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2023-12-22 17:05:23,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [599 Valid, 1025 Invalid, 2134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [243 Valid, 1891 Invalid, 0 Unknown, 0 Unchecked, 14.9s Time] [2023-12-22 17:05:23,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102813 states. [2023-12-22 17:05:24,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102813 to 97983. [2023-12-22 17:05:24,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97983 states, 97982 states have (on average 1.0508052499438671) internal successors, (102960), 97982 states have internal predecessors, (102960), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:05:24,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97983 states to 97983 states and 102960 transitions. [2023-12-22 17:05:24,442 INFO L78 Accepts]: Start accepts. Automaton has 97983 states and 102960 transitions. Word has length 1584 [2023-12-22 17:05:24,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 17:05:24,442 INFO L495 AbstractCegarLoop]: Abstraction has 97983 states and 102960 transitions. [2023-12-22 17:05:24,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 223.66666666666666) internal successors, (671), 3 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 17:05:24,443 INFO L276 IsEmpty]: Start isEmpty. Operand 97983 states and 102960 transitions. [2023-12-22 17:05:24,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1768 [2023-12-22 17:05:24,477 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 17:05:24,477 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:05:24,483 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 [2023-12-22 17:05:24,683 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 [2023-12-22 17:05:24,683 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 17:05:24,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 17:05:24,684 INFO L85 PathProgramCache]: Analyzing trace with hash -227561831, now seen corresponding path program 1 times [2023-12-22 17:05:24,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 17:05:24,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [486238809] [2023-12-22 17:05:24,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 17:05:24,689 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 [2023-12-22 17:05:24,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 17:05:24,690 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) [2023-12-22 17:05:24,704 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 [2023-12-22 17:05:25,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 17:05:25,340 INFO L262 TraceCheckSpWp]: Trace formula consists of 1850 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-22 17:05:25,351 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 17:05:30,482 INFO L134 CoverageAnalysis]: Checked inductivity of 2745 backedges. 339 proven. 2030 refuted. 0 times theorem prover too weak. 376 trivial. 0 not checked. [2023-12-22 17:05:30,483 INFO L327 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2023-12-22 17:05:33,447 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 (21)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 17:05:33,458 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 [2023-12-22 17:05:33,492 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-22 17:05:33,498 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-12-22 17:05:33,692 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 [2023-12-22 17:05:33,693 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 1768 with TraceHistMax 6,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. [2023-12-22 17:05:33,696 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 17:05:33,698 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 17:05:33,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 05:05:33 BoogieIcfgContainer [2023-12-22 17:05:33,699 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 17:05:33,700 INFO L158 Benchmark]: Toolchain (without parser) took 867389.34ms. Allocated memory was 199.2MB in the beginning and 1.0GB in the end (delta: 811.6MB). Free memory was 144.8MB in the beginning and 513.7MB in the end (delta: -368.9MB). Peak memory consumption was 443.0MB. Max. memory is 8.0GB. [2023-12-22 17:05:33,700 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 199.2MB. Free memory is still 146.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 17:05:33,700 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1075.29ms. Allocated memory was 199.2MB in the beginning and 317.7MB in the end (delta: 118.5MB). Free memory was 144.4MB in the beginning and 181.3MB in the end (delta: -36.8MB). Peak memory consumption was 88.1MB. Max. memory is 8.0GB. [2023-12-22 17:05:33,700 INFO L158 Benchmark]: Boogie Procedure Inliner took 177.25ms. Allocated memory is still 317.7MB. Free memory was 181.3MB in the beginning and 155.6MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2023-12-22 17:05:33,700 INFO L158 Benchmark]: Boogie Preprocessor took 173.84ms. Allocated memory is still 317.7MB. Free memory was 155.6MB in the beginning and 128.9MB in the end (delta: 26.7MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2023-12-22 17:05:33,701 INFO L158 Benchmark]: RCFGBuilder took 11897.61ms. Allocated memory was 317.7MB in the beginning and 548.4MB in the end (delta: 230.7MB). Free memory was 128.9MB in the beginning and 406.2MB in the end (delta: -277.4MB). Peak memory consumption was 76.1MB. Max. memory is 8.0GB. [2023-12-22 17:05:33,701 INFO L158 Benchmark]: TraceAbstraction took 854060.30ms. Allocated memory was 548.4MB in the beginning and 1.0GB in the end (delta: 462.4MB). Free memory was 405.7MB in the beginning and 513.7MB in the end (delta: -108.0MB). Peak memory consumption was 353.9MB. Max. memory is 8.0GB. [2023-12-22 17:05:33,702 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 199.2MB. Free memory is still 146.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1075.29ms. Allocated memory was 199.2MB in the beginning and 317.7MB in the end (delta: 118.5MB). Free memory was 144.4MB in the beginning and 181.3MB in the end (delta: -36.8MB). Peak memory consumption was 88.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 177.25ms. Allocated memory is still 317.7MB. Free memory was 181.3MB in the beginning and 155.6MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 173.84ms. Allocated memory is still 317.7MB. Free memory was 155.6MB in the beginning and 128.9MB in the end (delta: 26.7MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. * RCFGBuilder took 11897.61ms. Allocated memory was 317.7MB in the beginning and 548.4MB in the end (delta: 230.7MB). Free memory was 128.9MB in the beginning and 406.2MB in the end (delta: -277.4MB). Peak memory consumption was 76.1MB. Max. memory is 8.0GB. * TraceAbstraction took 854060.30ms. Allocated memory was 548.4MB in the beginning and 1.0GB in the end (delta: 462.4MB). Free memory was 405.7MB in the beginning and 513.7MB in the end (delta: -108.0MB). Peak memory consumption was 353.9MB. 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: 199]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 199). Cancelled while NwaCegarLoop was analyzing trace of length 1768 with TraceHistMax 6,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 695 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 854.0s, OverallIterations: 20, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 787.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23989 SdHoareTripleChecker+Valid, 779.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23989 mSDsluCounter, 13229 SdHoareTripleChecker+Invalid, 698.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 497 mSDsCounter, 10842 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 92112 IncrementalHoareTripleChecker+Invalid, 102954 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10842 mSolverCounterUnsat, 12732 mSDtfsCounter, 92112 mSolverCounterSat, 0.6s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24506 GetRequests, 24451 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=97983occurred in iteration=19, InterpolantAutomatonStates: 83, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 6.6s AutomataMinimizationTime, 19 MinimizatonAttempts, 25530 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 2.9s SatisfiabilityAnalysisTime, 41.6s InterpolantComputationTime, 17308 NumberOfCodeBlocks, 17308 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 24489 ConstructedInterpolants, 0 QuantifiedInterpolants, 71153 SizeOfPredicates, 5 NumberOfNonLiveVariables, 18514 ConjunctsInSsa, 65 ConjunctsInUnsatCore, 25 InterpolantComputations, 16 PerfectInterpolantSequences, 22973/28236 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