/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_label01.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 16:00:32,080 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 16:00:32,152 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 16:00:32,156 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 16:00:32,156 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 16:00:32,177 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 16:00:32,178 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 16:00:32,178 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 16:00:32,179 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 16:00:32,181 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 16:00:32,182 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 16:00:32,182 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 16:00:32,183 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 16:00:32,184 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 16:00:32,184 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 16:00:32,184 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 16:00:32,185 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 16:00:32,185 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 16:00:32,185 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 16:00:32,185 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 16:00:32,185 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 16:00:32,186 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 16:00:32,186 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 16:00:32,186 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 16:00:32,186 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 16:00:32,186 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 16:00:32,186 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 16:00:32,187 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 16:00:32,187 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 16:00:32,187 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 16:00:32,188 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 16:00:32,188 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 16:00:32,188 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 16:00:32,188 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 16:00:32,188 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 16:00:32,188 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 16:00:32,189 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 16:00:32,189 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 16:00:32,189 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 16:00:32,189 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 16:00:32,189 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 16:00:32,189 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 16:00:32,190 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 16:00:32,190 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 16:00:32,190 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 16:00:32,190 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 16:00:32,190 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 16:00:32,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 16:00:32,393 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 16:00:32,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 16:00:32,396 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 16:00:32,396 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 16:00:32,398 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label01.c [2023-12-22 16:00:33,422 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 16:00:33,698 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 16:00:33,698 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label01.c [2023-12-22 16:00:33,727 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c04f39bf0/e1417fa6483847a9b91baa81fb4b4eaf/FLAGcf2558207 [2023-12-22 16:00:33,745 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c04f39bf0/e1417fa6483847a9b91baa81fb4b4eaf [2023-12-22 16:00:33,747 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 16:00:33,748 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 16:00:33,750 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 16:00:33,750 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 16:00:33,756 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 16:00:33,756 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:00:33" (1/1) ... [2023-12-22 16:00:33,757 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7818d36c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:33, skipping insertion in model container [2023-12-22 16:00:33,757 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:00:33" (1/1) ... [2023-12-22 16:00:33,833 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 16:00:33,997 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_label01.c[2998,3011] [2023-12-22 16:00:34,411 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 16:00:34,422 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 16:00:34,437 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_label01.c[2998,3011] [2023-12-22 16:00:34,665 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 16:00:34,684 INFO L206 MainTranslator]: Completed translation [2023-12-22 16:00:34,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:34 WrapperNode [2023-12-22 16:00:34,685 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 16:00:34,686 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 16:00:34,686 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 16:00:34,686 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 16:00:34,690 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:34" (1/1) ... [2023-12-22 16:00:34,738 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:34" (1/1) ... [2023-12-22 16:00:34,849 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 4131 [2023-12-22 16:00:34,850 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 16:00:34,851 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 16:00:34,851 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 16:00:34,851 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 16:00:34,912 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:34" (1/1) ... [2023-12-22 16:00:34,912 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:34" (1/1) ... [2023-12-22 16:00:34,939 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:34" (1/1) ... [2023-12-22 16:00:34,976 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 16:00:34,977 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:34" (1/1) ... [2023-12-22 16:00:34,977 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:34" (1/1) ... [2023-12-22 16:00:35,027 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:34" (1/1) ... [2023-12-22 16:00:35,041 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:34" (1/1) ... [2023-12-22 16:00:35,055 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:34" (1/1) ... [2023-12-22 16:00:35,079 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:34" (1/1) ... [2023-12-22 16:00:35,101 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 16:00:35,103 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 16:00:35,103 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 16:00:35,103 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 16:00:35,104 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:34" (1/1) ... [2023-12-22 16:00:35,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 16:00:35,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 16:00:35,141 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 16:00:35,143 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 16:00:35,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 16:00:35,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 16:00:35,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 16:00:35,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 16:00:35,231 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 16:00:35,233 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 16:00:47,921 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 16:00:47,960 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 16:00:47,960 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-22 16:00:47,961 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:00:47 BoogieIcfgContainer [2023-12-22 16:00:47,961 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 16:00:47,962 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 16:00:47,962 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 16:00:47,965 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 16:00:47,965 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 04:00:33" (1/3) ... [2023-12-22 16:00:47,965 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a732c5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:00:47, skipping insertion in model container [2023-12-22 16:00:47,965 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:34" (2/3) ... [2023-12-22 16:00:47,966 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a732c5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:00:47, skipping insertion in model container [2023-12-22 16:00:47,966 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:00:47" (3/3) ... [2023-12-22 16:00:47,966 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label01.c [2023-12-22 16:00:47,981 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 16:00:47,981 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-22 16:00:48,023 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 16:00:48,027 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;@67104849, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 16:00:48,028 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-22 16:00:48,035 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 16:00:48,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-22 16:00:48,041 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 16:00:48,042 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] [2023-12-22 16:00:48,042 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 16:00:48,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 16:00:48,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1982255278, now seen corresponding path program 1 times [2023-12-22 16:00:48,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 16:00:48,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1852334025] [2023-12-22 16:00:48,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 16:00:48,058 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 16:00:48,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 16:00:48,060 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 16:00:48,068 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 16:00:48,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 16:00:48,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 16:00:48,129 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 16:00:48,145 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 16:00:48,145 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 16:00:48,146 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 16:00:48,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1852334025] [2023-12-22 16:00:48,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1852334025] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 16:00:48,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 16:00:48,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 16:00:48,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634192757] [2023-12-22 16:00:48,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 16:00:48,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 16:00:48,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 16:00:48,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 16:00:48,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 16:00:48,179 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 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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 16:00:48,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 16:00:48,254 INFO L93 Difference]: Finished difference Result 1389 states and 2763 transitions. [2023-12-22 16:00:48,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 16:00:48,257 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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 25 [2023-12-22 16:00:48,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 16:00:48,267 INFO L225 Difference]: With dead ends: 1389 [2023-12-22 16:00:48,267 INFO L226 Difference]: Without dead ends: 693 [2023-12-22 16:00:48,271 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 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 16:00:48,274 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 16:00:48,274 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 16:00:48,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2023-12-22 16:00:48,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 693. [2023-12-22 16:00:48,331 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 16:00:48,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1317 transitions. [2023-12-22 16:00:48,333 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1317 transitions. Word has length 25 [2023-12-22 16:00:48,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 16:00:48,333 INFO L495 AbstractCegarLoop]: Abstraction has 693 states and 1317 transitions. [2023-12-22 16:00:48,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 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 16:00:48,334 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1317 transitions. [2023-12-22 16:00:48,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-22 16:00:48,334 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 16:00:48,334 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] [2023-12-22 16:00:48,343 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-22 16:00:48,543 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 16:00:48,543 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 16:00:48,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 16:00:48,544 INFO L85 PathProgramCache]: Analyzing trace with hash 347276149, now seen corresponding path program 1 times [2023-12-22 16:00:48,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 16:00:48,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [26609448] [2023-12-22 16:00:48,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 16:00:48,545 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 16:00:48,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 16:00:48,549 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 16:00:48,550 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 16:00:48,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 16:00:48,587 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 16:00:48,587 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 16:00:48,654 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 16:00:48,654 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 16:00:48,655 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 16:00:48,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [26609448] [2023-12-22 16:00:48,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [26609448] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 16:00:48,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 16:00:48,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 16:00:48,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570393227] [2023-12-22 16:00:48,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 16:00:48,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 16:00:48,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 16:00:48,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 16:00:48,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 16:00:48,662 INFO L87 Difference]: Start difference. First operand 693 states and 1317 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 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 16:01:06,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 16:01:06,996 INFO L93 Difference]: Finished difference Result 2075 states and 3948 transitions. [2023-12-22 16:01:06,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 16:01:06,996 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 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 25 [2023-12-22 16:01:06,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 16:01:07,002 INFO L225 Difference]: With dead ends: 2075 [2023-12-22 16:01:07,002 INFO L226 Difference]: Without dead ends: 1383 [2023-12-22 16:01:07,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 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 16:01:07,004 INFO L413 NwaCegarLoop]: 459 mSDtfsCounter, 686 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2106 mSolverCounterSat, 517 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 2623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 517 IncrementalHoareTripleChecker+Valid, 2106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2023-12-22 16:01:07,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [686 Valid, 465 Invalid, 2623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [517 Valid, 2106 Invalid, 0 Unknown, 0 Unchecked, 18.2s Time] [2023-12-22 16:01:07,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1383 states. [2023-12-22 16:01:07,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1383 to 1383. [2023-12-22 16:01:07,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1383 states, 1382 states have (on average 1.5781476121562952) internal successors, (2181), 1382 states have internal predecessors, (2181), 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 16:01:07,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1383 states to 1383 states and 2181 transitions. [2023-12-22 16:01:07,041 INFO L78 Accepts]: Start accepts. Automaton has 1383 states and 2181 transitions. Word has length 25 [2023-12-22 16:01:07,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 16:01:07,042 INFO L495 AbstractCegarLoop]: Abstraction has 1383 states and 2181 transitions. [2023-12-22 16:01:07,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 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 16:01:07,042 INFO L276 IsEmpty]: Start isEmpty. Operand 1383 states and 2181 transitions. [2023-12-22 16:01:07,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-22 16:01:07,043 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 16:01:07,044 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:01:07,050 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-12-22 16:01:07,248 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 16:01:07,248 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 16:01:07,249 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 16:01:07,249 INFO L85 PathProgramCache]: Analyzing trace with hash 886836702, now seen corresponding path program 1 times [2023-12-22 16:01:07,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 16:01:07,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1637850627] [2023-12-22 16:01:07,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 16:01:07,250 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 16:01:07,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 16:01:07,251 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 16:01:07,270 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 16:01:07,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 16:01:07,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 16:01:07,300 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 16:01:07,412 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 16:01:07,412 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 16:01:07,412 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 16:01:07,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1637850627] [2023-12-22 16:01:07,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1637850627] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 16:01:07,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 16:01:07,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 16:01:07,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134176951] [2023-12-22 16:01:07,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 16:01:07,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 16:01:07,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 16:01:07,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 16:01:07,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 16:01:07,414 INFO L87 Difference]: Start difference. First operand 1383 states and 2181 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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 16:01:25,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 16:01:25,167 INFO L93 Difference]: Finished difference Result 4145 states and 6540 transitions. [2023-12-22 16:01:25,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 16:01:25,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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 91 [2023-12-22 16:01:25,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 16:01:25,175 INFO L225 Difference]: With dead ends: 4145 [2023-12-22 16:01:25,176 INFO L226 Difference]: Without dead ends: 2763 [2023-12-22 16:01:25,178 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 16:01:25,180 INFO L413 NwaCegarLoop]: 522 mSDtfsCounter, 713 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1702 mSolverCounterSat, 918 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 713 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, 17.6s IncrementalHoareTripleChecker+Time [2023-12-22 16:01:25,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [713 Valid, 527 Invalid, 2620 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [918 Valid, 1702 Invalid, 0 Unknown, 0 Unchecked, 17.6s Time] [2023-12-22 16:01:25,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2763 states. [2023-12-22 16:01:25,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2763 to 2763. [2023-12-22 16:01:25,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2763 states, 2762 states have (on average 1.3482983345401882) internal successors, (3724), 2762 states have internal predecessors, (3724), 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 16:01:25,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2763 states to 2763 states and 3724 transitions. [2023-12-22 16:01:25,221 INFO L78 Accepts]: Start accepts. Automaton has 2763 states and 3724 transitions. Word has length 91 [2023-12-22 16:01:25,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 16:01:25,222 INFO L495 AbstractCegarLoop]: Abstraction has 2763 states and 3724 transitions. [2023-12-22 16:01:25,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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 16:01:25,223 INFO L276 IsEmpty]: Start isEmpty. Operand 2763 states and 3724 transitions. [2023-12-22 16:01:25,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-12-22 16:01:25,227 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 16:01:25,228 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:01:25,233 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-12-22 16:01:25,431 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 16:01:25,431 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 16:01:25,431 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 16:01:25,432 INFO L85 PathProgramCache]: Analyzing trace with hash -190778132, now seen corresponding path program 1 times [2023-12-22 16:01:25,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 16:01:25,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1617311079] [2023-12-22 16:01:25,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 16:01:25,433 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 16:01:25,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 16:01:25,434 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 16:01:25,436 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 16:01:25,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 16:01:25,483 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 16:01:25,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 16:01:25,628 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 16:01:25,628 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 16:01:25,628 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 16:01:25,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1617311079] [2023-12-22 16:01:25,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1617311079] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 16:01:25,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 16:01:25,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 16:01:25,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926452985] [2023-12-22 16:01:25,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 16:01:25,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 16:01:25,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 16:01:25,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 16:01:25,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 16:01:25,630 INFO L87 Difference]: Start difference. First operand 2763 states and 3724 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 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 16:01:38,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 16:01:38,750 INFO L93 Difference]: Finished difference Result 6907 states and 8991 transitions. [2023-12-22 16:01:38,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 16:01:38,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 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 111 [2023-12-22 16:01:38,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 16:01:38,768 INFO L225 Difference]: With dead ends: 6907 [2023-12-22 16:01:38,769 INFO L226 Difference]: Without dead ends: 4145 [2023-12-22 16:01:38,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 16:01:38,773 INFO L413 NwaCegarLoop]: 616 mSDtfsCounter, 625 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2032 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 625 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 2109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 2032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2023-12-22 16:01:38,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [625 Valid, 622 Invalid, 2109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 2032 Invalid, 0 Unknown, 0 Unchecked, 13.0s Time] [2023-12-22 16:01:38,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4145 states. [2023-12-22 16:01:38,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4145 to 4143. [2023-12-22 16:01:38,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4143 states, 4142 states have (on average 1.2440849830999516) internal successors, (5153), 4142 states have internal predecessors, (5153), 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 16:01:38,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4143 states to 4143 states and 5153 transitions. [2023-12-22 16:01:38,828 INFO L78 Accepts]: Start accepts. Automaton has 4143 states and 5153 transitions. Word has length 111 [2023-12-22 16:01:38,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 16:01:38,828 INFO L495 AbstractCegarLoop]: Abstraction has 4143 states and 5153 transitions. [2023-12-22 16:01:38,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 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 16:01:38,828 INFO L276 IsEmpty]: Start isEmpty. Operand 4143 states and 5153 transitions. [2023-12-22 16:01:38,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-12-22 16:01:38,829 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 16:01:38,829 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:01:38,847 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 16:01:39,047 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 16:01:39,047 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 16:01:39,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 16:01:39,048 INFO L85 PathProgramCache]: Analyzing trace with hash 32416553, now seen corresponding path program 1 times [2023-12-22 16:01:39,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 16:01:39,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [898110170] [2023-12-22 16:01:39,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 16:01:39,049 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 16:01:39,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 16:01:39,050 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 16:01:39,068 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 16:01:39,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 16:01:39,134 INFO L262 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 16:01:39,137 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 16:01:39,541 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 16:01:39,541 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 16:01:39,541 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 16:01:39,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [898110170] [2023-12-22 16:01:39,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [898110170] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 16:01:39,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 16:01:39,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 16:01:39,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747334088] [2023-12-22 16:01:39,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 16:01:39,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 16:01:39,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 16:01:39,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 16:01:39,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 16:01:39,543 INFO L87 Difference]: Start difference. First operand 4143 states and 5153 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 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 16:01:54,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 16:01:54,207 INFO L93 Difference]: Finished difference Result 10355 states and 12621 transitions. [2023-12-22 16:01:54,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 16:01:54,208 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 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 118 [2023-12-22 16:01:54,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 16:01:54,224 INFO L225 Difference]: With dead ends: 10355 [2023-12-22 16:01:54,224 INFO L226 Difference]: Without dead ends: 6213 [2023-12-22 16:01:54,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 116 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 16:01:54,229 INFO L413 NwaCegarLoop]: 628 mSDtfsCounter, 599 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2126 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 2234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 2126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2023-12-22 16:01:54,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [599 Valid, 634 Invalid, 2234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 2126 Invalid, 0 Unknown, 0 Unchecked, 14.5s Time] [2023-12-22 16:01:54,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6213 states. [2023-12-22 16:01:54,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6213 to 6213. [2023-12-22 16:01:54,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6213 states, 6212 states have (on average 1.1791693496458469) internal successors, (7325), 6212 states have internal predecessors, (7325), 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 16:01:54,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6213 states to 6213 states and 7325 transitions. [2023-12-22 16:01:54,303 INFO L78 Accepts]: Start accepts. Automaton has 6213 states and 7325 transitions. Word has length 118 [2023-12-22 16:01:54,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 16:01:54,305 INFO L495 AbstractCegarLoop]: Abstraction has 6213 states and 7325 transitions. [2023-12-22 16:01:54,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 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 16:01:54,306 INFO L276 IsEmpty]: Start isEmpty. Operand 6213 states and 7325 transitions. [2023-12-22 16:01:54,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-12-22 16:01:54,309 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 16:01:54,312 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:01:54,317 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 16:01:54,515 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 16:01:54,515 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 16:01:54,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 16:01:54,516 INFO L85 PathProgramCache]: Analyzing trace with hash -585725444, now seen corresponding path program 1 times [2023-12-22 16:01:54,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 16:01:54,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [201216868] [2023-12-22 16:01:54,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 16:01:54,517 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 16:01:54,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 16:01:54,518 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 16:01:54,524 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 16:01:54,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 16:01:54,585 INFO L262 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 16:01:54,588 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 16:01:54,623 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 16:01:54,623 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 16:01:54,623 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 16:01:54,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [201216868] [2023-12-22 16:01:54,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [201216868] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 16:01:54,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 16:01:54,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 16:01:54,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930227179] [2023-12-22 16:01:54,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 16:01:54,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 16:01:54,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 16:01:54,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 16:01:54,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 16:01:54,625 INFO L87 Difference]: Start difference. First operand 6213 states and 7325 transitions. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 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 16:02:13,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 16:02:13,808 INFO L93 Difference]: Finished difference Result 14495 states and 17675 transitions. [2023-12-22 16:02:13,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 16:02:13,811 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 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 207 [2023-12-22 16:02:13,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 16:02:13,833 INFO L225 Difference]: With dead ends: 14495 [2023-12-22 16:02:13,833 INFO L226 Difference]: Without dead ends: 8973 [2023-12-22 16:02:13,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 205 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 16:02:13,844 INFO L413 NwaCegarLoop]: 1277 mSDtfsCounter, 671 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1955 mSolverCounterSat, 771 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 671 SdHoareTripleChecker+Valid, 1283 SdHoareTripleChecker+Invalid, 2726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 771 IncrementalHoareTripleChecker+Valid, 1955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.0s IncrementalHoareTripleChecker+Time [2023-12-22 16:02:13,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [671 Valid, 1283 Invalid, 2726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [771 Valid, 1955 Invalid, 0 Unknown, 0 Unchecked, 19.0s Time] [2023-12-22 16:02:13,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8973 states. [2023-12-22 16:02:13,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8973 to 8973. [2023-12-22 16:02:13,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8973 states, 8972 states have (on average 1.1660722246990638) internal successors, (10462), 8972 states have internal predecessors, (10462), 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 16:02:13,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8973 states to 8973 states and 10462 transitions. [2023-12-22 16:02:13,988 INFO L78 Accepts]: Start accepts. Automaton has 8973 states and 10462 transitions. Word has length 207 [2023-12-22 16:02:13,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 16:02:13,989 INFO L495 AbstractCegarLoop]: Abstraction has 8973 states and 10462 transitions. [2023-12-22 16:02:13,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 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 16:02:13,989 INFO L276 IsEmpty]: Start isEmpty. Operand 8973 states and 10462 transitions. [2023-12-22 16:02:13,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2023-12-22 16:02:13,991 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 16:02:13,991 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 16:02:13,997 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-12-22 16:02:14,192 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 16:02:14,192 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 16:02:14,192 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 16:02:14,193 INFO L85 PathProgramCache]: Analyzing trace with hash 381315555, now seen corresponding path program 1 times [2023-12-22 16:02:14,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 16:02:14,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [605620564] [2023-12-22 16:02:14,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 16:02:14,194 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 16:02:14,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 16:02:14,195 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 16:02:14,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-12-22 16:02:14,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 16:02:14,286 INFO L262 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 16:02:14,289 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 16:02:15,322 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 16:02:15,322 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 16:02:15,323 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 16:02:15,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [605620564] [2023-12-22 16:02:15,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [605620564] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 16:02:15,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 16:02:15,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 16:02:15,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103000967] [2023-12-22 16:02:15,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 16:02:15,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 16:02:15,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 16:02:15,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 16:02:15,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-12-22 16:02:15,324 INFO L87 Difference]: Start difference. First operand 8973 states and 10462 transitions. Second operand has 4 states, 4 states have (on average 81.25) internal successors, (325), 3 states have internal predecessors, (325), 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 16:02:28,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 16:02:28,378 INFO L93 Difference]: Finished difference Result 15928 states and 18876 transitions. [2023-12-22 16:02:28,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 16:02:28,380 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 81.25) internal successors, (325), 3 states have internal predecessors, (325), 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 325 [2023-12-22 16:02:28,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 16:02:28,398 INFO L225 Difference]: With dead ends: 15928 [2023-12-22 16:02:28,398 INFO L226 Difference]: Without dead ends: 8283 [2023-12-22 16:02:28,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 322 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 16:02:28,405 INFO L413 NwaCegarLoop]: 616 mSDtfsCounter, 513 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 3372 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 3380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 3372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2023-12-22 16:02:28,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 628 Invalid, 3380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 3372 Invalid, 0 Unknown, 0 Unchecked, 12.9s Time] [2023-12-22 16:02:28,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8283 states. [2023-12-22 16:02:28,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8283 to 8283. [2023-12-22 16:02:28,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8283 states, 8282 states have (on average 1.1774933590920067) internal successors, (9752), 8282 states have internal predecessors, (9752), 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 16:02:28,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8283 states to 8283 states and 9752 transitions. [2023-12-22 16:02:28,509 INFO L78 Accepts]: Start accepts. Automaton has 8283 states and 9752 transitions. Word has length 325 [2023-12-22 16:02:28,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 16:02:28,509 INFO L495 AbstractCegarLoop]: Abstraction has 8283 states and 9752 transitions. [2023-12-22 16:02:28,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.25) internal successors, (325), 3 states have internal predecessors, (325), 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 16:02:28,510 INFO L276 IsEmpty]: Start isEmpty. Operand 8283 states and 9752 transitions. [2023-12-22 16:02:28,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 659 [2023-12-22 16:02:28,517 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 16:02:28,518 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-22 16:02:28,522 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 16:02:28,720 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 16:02:28,721 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 16:02:28,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 16:02:28,721 INFO L85 PathProgramCache]: Analyzing trace with hash 386031060, now seen corresponding path program 1 times [2023-12-22 16:02:28,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 16:02:28,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1082027678] [2023-12-22 16:02:28,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 16:02:28,724 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 16:02:28,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 16:02:28,725 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 16:02:28,726 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 16:02:28,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 16:02:28,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 706 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 16:02:28,883 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 16:02:30,710 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2023-12-22 16:02:30,710 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 16:02:30,711 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 16:02:30,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1082027678] [2023-12-22 16:02:30,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1082027678] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 16:02:30,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 16:02:30,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 16:02:30,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758762393] [2023-12-22 16:02:30,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 16:02:30,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 16:02:30,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 16:02:30,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 16:02:30,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 16:02:30,712 INFO L87 Difference]: Start difference. First operand 8283 states and 9752 transitions. Second operand has 3 states, 3 states have (on average 180.66666666666666) internal successors, (542), 2 states have internal predecessors, (542), 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 16:02:42,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 16:02:42,791 INFO L93 Difference]: Finished difference Result 15185 states and 18113 transitions. [2023-12-22 16:02:42,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 16:02:42,793 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 180.66666666666666) internal successors, (542), 2 states have internal predecessors, (542), 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 658 [2023-12-22 16:02:42,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 16:02:42,810 INFO L225 Difference]: With dead ends: 15185 [2023-12-22 16:02:42,810 INFO L226 Difference]: Without dead ends: 8283 [2023-12-22 16:02:42,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 657 GetRequests, 656 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 16:02:42,816 INFO L413 NwaCegarLoop]: 628 mSDtfsCounter, 176 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1999 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 2004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1999 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2023-12-22 16:02:42,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 634 Invalid, 2004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1999 Invalid, 0 Unknown, 0 Unchecked, 12.0s Time] [2023-12-22 16:02:42,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8283 states. [2023-12-22 16:02:42,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8283 to 8283. [2023-12-22 16:02:42,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8283 states, 8282 states have (on average 1.1767688964018352) internal successors, (9746), 8282 states have internal predecessors, (9746), 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 16:02:42,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8283 states to 8283 states and 9746 transitions. [2023-12-22 16:02:42,884 INFO L78 Accepts]: Start accepts. Automaton has 8283 states and 9746 transitions. Word has length 658 [2023-12-22 16:02:42,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 16:02:42,885 INFO L495 AbstractCegarLoop]: Abstraction has 8283 states and 9746 transitions. [2023-12-22 16:02:42,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 180.66666666666666) internal successors, (542), 2 states have internal predecessors, (542), 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 16:02:42,885 INFO L276 IsEmpty]: Start isEmpty. Operand 8283 states and 9746 transitions. [2023-12-22 16:02:42,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 926 [2023-12-22 16:02:42,900 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 16:02:42,901 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:02:42,916 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-12-22 16:02:43,103 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 16:02:43,104 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 16:02:43,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 16:02:43,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1315535196, now seen corresponding path program 1 times [2023-12-22 16:02:43,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 16:02:43,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1188594131] [2023-12-22 16:02:43,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 16:02:43,108 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 16:02:43,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 16:02:43,109 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 16:02:43,110 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 16:02:43,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 16:02:43,344 INFO L262 TraceCheckSpWp]: Trace formula consists of 986 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 16:02:43,350 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 16:02:44,362 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 71 proven. 172 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-22 16:02:44,363 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 16:02:44,716 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-22 16:02:44,716 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 16:02:44,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1188594131] [2023-12-22 16:02:44,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1188594131] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 16:02:44,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 16:02:44,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-22 16:02:44,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772458723] [2023-12-22 16:02:44,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 16:02:44,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 16:02:44,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 16:02:44,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 16:02:44,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 16:02:44,718 INFO L87 Difference]: Start difference. First operand 8283 states and 9746 transitions. Second operand has 3 states, 3 states have (on average 209.66666666666666) internal successors, (629), 3 states have internal predecessors, (629), 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 16:03:18,311 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:03:25,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 16:03:25,073 INFO L93 Difference]: Finished difference Result 20705 states and 24991 transitions. [2023-12-22 16:03:25,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 16:03:25,077 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 209.66666666666666) internal successors, (629), 3 states have internal predecessors, (629), 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 925 [2023-12-22 16:03:25,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 16:03:25,098 INFO L225 Difference]: With dead ends: 20705 [2023-12-22 16:03:25,098 INFO L226 Difference]: Without dead ends: 13803 [2023-12-22 16:03:25,105 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1848 GetRequests, 1845 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 16:03:25,106 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 700 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1979 mSolverCounterSat, 811 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 2790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 811 IncrementalHoareTripleChecker+Valid, 1979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.2s IncrementalHoareTripleChecker+Time [2023-12-22 16:03:25,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [700 Valid, 281 Invalid, 2790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [811 Valid, 1979 Invalid, 0 Unknown, 0 Unchecked, 40.2s Time] [2023-12-22 16:03:25,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13803 states. [2023-12-22 16:03:25,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13803 to 13803. [2023-12-22 16:03:25,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13803 states, 13802 states have (on average 1.161860599913056) internal successors, (16036), 13802 states have internal predecessors, (16036), 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 16:03:25,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13803 states to 13803 states and 16036 transitions. [2023-12-22 16:03:25,242 INFO L78 Accepts]: Start accepts. Automaton has 13803 states and 16036 transitions. Word has length 925 [2023-12-22 16:03:25,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 16:03:25,243 INFO L495 AbstractCegarLoop]: Abstraction has 13803 states and 16036 transitions. [2023-12-22 16:03:25,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 209.66666666666666) internal successors, (629), 3 states have internal predecessors, (629), 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 16:03:25,244 INFO L276 IsEmpty]: Start isEmpty. Operand 13803 states and 16036 transitions. [2023-12-22 16:03:25,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 958 [2023-12-22 16:03:25,250 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 16:03:25,253 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:03:25,262 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 16:03:25,462 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 16:03:25,463 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 16:03:25,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 16:03:25,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1052977068, now seen corresponding path program 1 times [2023-12-22 16:03:25,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 16:03:25,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [419485504] [2023-12-22 16:03:25,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 16:03:25,467 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 16:03:25,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 16:03:25,468 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 16:03:25,468 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 16:03:25,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 16:03:25,716 INFO L262 TraceCheckSpWp]: Trace formula consists of 1016 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 16:03:25,723 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 16:03:28,302 INFO L134 CoverageAnalysis]: Checked inductivity of 604 backedges. 71 proven. 236 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-22 16:03:28,302 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 16:03:29,772 INFO L134 CoverageAnalysis]: Checked inductivity of 604 backedges. 307 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-22 16:03:29,772 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 16:03:29,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [419485504] [2023-12-22 16:03:29,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [419485504] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 16:03:29,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 16:03:29,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2023-12-22 16:03:29,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580704725] [2023-12-22 16:03:29,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 16:03:29,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 16:03:29,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 16:03:29,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 16:03:29,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-22 16:03:29,775 INFO L87 Difference]: Start difference. First operand 13803 states and 16036 transitions. Second operand has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 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 16:04:03,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 16:04:03,285 INFO L93 Difference]: Finished difference Result 32435 states and 38388 transitions. [2023-12-22 16:04:03,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 16:04:03,287 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 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 957 [2023-12-22 16:04:03,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 16:04:03,312 INFO L225 Difference]: With dead ends: 32435 [2023-12-22 16:04:03,312 INFO L226 Difference]: Without dead ends: 20013 [2023-12-22 16:04:03,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1912 GetRequests, 1909 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 16:04:03,322 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 604 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1962 mSolverCounterSat, 1142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 604 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 3104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1142 IncrementalHoareTripleChecker+Valid, 1962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.3s IncrementalHoareTripleChecker+Time [2023-12-22 16:04:03,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [604 Valid, 96 Invalid, 3104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1142 Valid, 1962 Invalid, 0 Unknown, 0 Unchecked, 33.3s Time] [2023-12-22 16:04:03,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20013 states. [2023-12-22 16:04:03,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20013 to 20013. [2023-12-22 16:04:03,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20013 states, 20012 states have (on average 1.1714471317209674) internal successors, (23443), 20012 states have internal predecessors, (23443), 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 16:04:03,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20013 states to 20013 states and 23443 transitions. [2023-12-22 16:04:03,553 INFO L78 Accepts]: Start accepts. Automaton has 20013 states and 23443 transitions. Word has length 957 [2023-12-22 16:04:03,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 16:04:03,554 INFO L495 AbstractCegarLoop]: Abstraction has 20013 states and 23443 transitions. [2023-12-22 16:04:03,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 220.33333333333334) internal successors, (661), 3 states have internal predecessors, (661), 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 16:04:03,554 INFO L276 IsEmpty]: Start isEmpty. Operand 20013 states and 23443 transitions. [2023-12-22 16:04:03,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 978 [2023-12-22 16:04:03,562 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 16:04:03,562 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:04:03,569 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 16:04:03,771 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 16:04:03,772 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 16:04:03,772 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 16:04:03,773 INFO L85 PathProgramCache]: Analyzing trace with hash -213916830, now seen corresponding path program 1 times [2023-12-22 16:04:03,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 16:04:03,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [414690624] [2023-12-22 16:04:03,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 16:04:03,776 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 16:04:03,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 16:04:03,777 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 16:04:03,782 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 16:04:04,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 16:04:04,031 INFO L262 TraceCheckSpWp]: Trace formula consists of 1038 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 16:04:04,038 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 16:04:04,241 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 347 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-22 16:04:04,241 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 16:04:04,241 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 16:04:04,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [414690624] [2023-12-22 16:04:04,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [414690624] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 16:04:04,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 16:04:04,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 16:04:04,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774083260] [2023-12-22 16:04:04,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 16:04:04,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 16:04:04,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 16:04:04,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 16:04:04,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 16:04:04,244 INFO L87 Difference]: Start difference. First operand 20013 states and 23443 transitions. Second operand has 3 states, 3 states have (on average 227.0) internal successors, (681), 3 states have internal predecessors, (681), 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 16:04:24,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 16:04:24,587 INFO L93 Difference]: Finished difference Result 46235 states and 55011 transitions. [2023-12-22 16:04:24,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 16:04:24,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 227.0) internal successors, (681), 3 states have internal predecessors, (681), 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 977 [2023-12-22 16:04:24,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 16:04:24,635 INFO L225 Difference]: With dead ends: 46235 [2023-12-22 16:04:24,636 INFO L226 Difference]: Without dead ends: 27603 [2023-12-22 16:04:24,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 976 GetRequests, 975 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 16:04:24,652 INFO L413 NwaCegarLoop]: 1281 mSDtfsCounter, 555 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 2390 mSolverCounterSat, 428 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 1286 SdHoareTripleChecker+Invalid, 2818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 428 IncrementalHoareTripleChecker+Valid, 2390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.1s IncrementalHoareTripleChecker+Time [2023-12-22 16:04:24,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [555 Valid, 1286 Invalid, 2818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [428 Valid, 2390 Invalid, 0 Unknown, 0 Unchecked, 20.1s Time] [2023-12-22 16:04:24,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27603 states. [2023-12-22 16:04:24,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27603 to 27603. [2023-12-22 16:04:24,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27603 states, 27602 states have (on average 1.137779871023839) internal successors, (31405), 27602 states have internal predecessors, (31405), 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 16:04:24,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27603 states to 27603 states and 31405 transitions. [2023-12-22 16:04:24,907 INFO L78 Accepts]: Start accepts. Automaton has 27603 states and 31405 transitions. Word has length 977 [2023-12-22 16:04:24,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 16:04:24,908 INFO L495 AbstractCegarLoop]: Abstraction has 27603 states and 31405 transitions. [2023-12-22 16:04:24,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 227.0) internal successors, (681), 3 states have internal predecessors, (681), 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 16:04:24,908 INFO L276 IsEmpty]: Start isEmpty. Operand 27603 states and 31405 transitions. [2023-12-22 16:04:24,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1065 [2023-12-22 16:04:24,917 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 16:04:24,918 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 16:04:24,926 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 (12)] Ended with exit code 0 [2023-12-22 16:04:25,122 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 16:04:25,123 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 16:04:25,123 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 16:04:25,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1815397173, now seen corresponding path program 1 times [2023-12-22 16:04:25,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 16:04:25,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [368656597] [2023-12-22 16:04:25,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 16:04:25,127 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 16:04:25,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 16:04:25,128 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 16:04:25,135 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 16:04:25,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 16:04:25,441 INFO L262 TraceCheckSpWp]: Trace formula consists of 1135 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 16:04:25,476 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 16:04:25,584 INFO L134 CoverageAnalysis]: Checked inductivity of 927 backedges. 352 proven. 0 refuted. 0 times theorem prover too weak. 575 trivial. 0 not checked. [2023-12-22 16:04:25,584 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 16:04:25,585 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 16:04:25,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [368656597] [2023-12-22 16:04:25,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [368656597] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 16:04:25,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 16:04:25,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-22 16:04:25,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761474851] [2023-12-22 16:04:25,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 16:04:25,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 16:04:25,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 16:04:25,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 16:04:25,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 16:04:25,586 INFO L87 Difference]: Start difference. First operand 27603 states and 31405 transitions. Second operand has 3 states, 3 states have (on average 209.66666666666666) internal successors, (629), 3 states have internal predecessors, (629), 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 16:04:46,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 16:04:46,453 INFO L93 Difference]: Finished difference Result 60725 states and 69884 transitions. [2023-12-22 16:04:46,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 16:04:46,457 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 209.66666666666666) internal successors, (629), 3 states have internal predecessors, (629), 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 1064 [2023-12-22 16:04:46,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 16:04:46,497 INFO L225 Difference]: With dead ends: 60725 [2023-12-22 16:04:46,497 INFO L226 Difference]: Without dead ends: 34503 [2023-12-22 16:04:46,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1063 GetRequests, 1062 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 16:04:46,512 INFO L413 NwaCegarLoop]: 1309 mSDtfsCounter, 605 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2408 mSolverCounterSat, 431 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 1315 SdHoareTripleChecker+Invalid, 2839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 431 IncrementalHoareTripleChecker+Valid, 2408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.6s IncrementalHoareTripleChecker+Time [2023-12-22 16:04:46,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [605 Valid, 1315 Invalid, 2839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [431 Valid, 2408 Invalid, 0 Unknown, 0 Unchecked, 20.6s Time] [2023-12-22 16:04:46,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34503 states. [2023-12-22 16:04:46,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34503 to 34503. [2023-12-22 16:04:46,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34503 states, 34502 states have (on average 1.125499971016173) internal successors, (38832), 34502 states have internal predecessors, (38832), 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 16:04:46,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34503 states to 34503 states and 38832 transitions. [2023-12-22 16:04:46,903 INFO L78 Accepts]: Start accepts. Automaton has 34503 states and 38832 transitions. Word has length 1064 [2023-12-22 16:04:46,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 16:04:46,904 INFO L495 AbstractCegarLoop]: Abstraction has 34503 states and 38832 transitions. [2023-12-22 16:04:46,904 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 209.66666666666666) internal successors, (629), 3 states have internal predecessors, (629), 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 16:04:46,904 INFO L276 IsEmpty]: Start isEmpty. Operand 34503 states and 38832 transitions. [2023-12-22 16:04:46,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1086 [2023-12-22 16:04:46,913 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 16:04:46,913 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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 16:04:46,918 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-12-22 16:04:47,118 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 16:04:47,119 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 16:04:47,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 16:04:47,119 INFO L85 PathProgramCache]: Analyzing trace with hash -302704931, now seen corresponding path program 1 times [2023-12-22 16:04:47,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 16:04:47,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [942639400] [2023-12-22 16:04:47,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 16:04:47,123 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 16:04:47,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 16:04:47,124 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 16:04:47,128 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 16:04:47,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 16:04:47,473 INFO L262 TraceCheckSpWp]: Trace formula consists of 1154 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 16:04:47,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 16:04:48,671 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 693 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-22 16:04:48,672 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 16:04:52,522 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 415 proven. 0 refuted. 0 times theorem prover too weak. 575 trivial. 0 not checked. [2023-12-22 16:04:52,522 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 16:04:52,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [942639400] [2023-12-22 16:04:52,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [942639400] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 16:04:52,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 16:04:52,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2023-12-22 16:04:52,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555048475] [2023-12-22 16:04:52,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 16:04:52,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 16:04:52,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 16:04:52,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 16:04:52,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-12-22 16:04:52,525 INFO L87 Difference]: Start difference. First operand 34503 states and 38832 transitions. Second operand has 4 states, 4 states have (on average 162.5) internal successors, (650), 4 states have internal predecessors, (650), 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 16:06:29,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:06:47,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:07:39,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 16:07:39,192 INFO L93 Difference]: Finished difference Result 92467 states and 105630 transitions. [2023-12-22 16:07:39,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 16:07:39,196 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 162.5) internal successors, (650), 4 states have internal predecessors, (650), 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 1085 [2023-12-22 16:07:39,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 16:07:39,265 INFO L225 Difference]: With dead ends: 92467 [2023-12-22 16:07:39,265 INFO L226 Difference]: Without dead ends: 59345 [2023-12-22 16:07:39,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2168 GetRequests, 2162 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2023-12-22 16:07:39,284 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 1385 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 3899 mSolverCounterSat, 1355 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 152.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1385 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 5254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1355 IncrementalHoareTripleChecker+Valid, 3899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 166.1s IncrementalHoareTripleChecker+Time [2023-12-22 16:07:39,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1385 Valid, 23 Invalid, 5254 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1355 Valid, 3899 Invalid, 0 Unknown, 0 Unchecked, 166.1s Time] [2023-12-22 16:07:39,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59345 states. [2023-12-22 16:07:40,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59345 to 52443. [2023-12-22 16:07:40,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52443 states, 52442 states have (on average 1.1495366309446626) internal successors, (60284), 52442 states have internal predecessors, (60284), 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 16:07:40,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52443 states to 52443 states and 60284 transitions. [2023-12-22 16:07:40,135 INFO L78 Accepts]: Start accepts. Automaton has 52443 states and 60284 transitions. Word has length 1085 [2023-12-22 16:07:40,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 16:07:40,135 INFO L495 AbstractCegarLoop]: Abstraction has 52443 states and 60284 transitions. [2023-12-22 16:07:40,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 162.5) internal successors, (650), 4 states have internal predecessors, (650), 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 16:07:40,136 INFO L276 IsEmpty]: Start isEmpty. Operand 52443 states and 60284 transitions. [2023-12-22 16:07:40,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1117 [2023-12-22 16:07:40,145 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 16:07:40,153 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 16:07:40,160 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-12-22 16:07:40,358 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 16:07:40,359 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 16:07:40,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 16:07:40,359 INFO L85 PathProgramCache]: Analyzing trace with hash -88692365, now seen corresponding path program 1 times [2023-12-22 16:07:40,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 16:07:40,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1889189557] [2023-12-22 16:07:40,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 16:07:40,364 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 16:07:40,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 16:07:40,365 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 16:07:40,367 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 16:07:40,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 16:07:40,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 1187 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-22 16:07:40,766 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 16:07:42,219 INFO L134 CoverageAnalysis]: Checked inductivity of 1083 backedges. 95 proven. 691 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-22 16:07:42,219 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 16:07:51,495 INFO L134 CoverageAnalysis]: Checked inductivity of 1083 backedges. 786 proven. 0 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2023-12-22 16:07:51,496 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 16:07:51,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1889189557] [2023-12-22 16:07:51,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1889189557] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 16:07:51,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 16:07:51,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2023-12-22 16:07:51,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838823185] [2023-12-22 16:07:51,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 16:07:51,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 16:07:51,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 16:07:51,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 16:07:51,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-22 16:07:51,498 INFO L87 Difference]: Start difference. First operand 52443 states and 60284 transitions. Second operand has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 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 16:08:24,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:08:43,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:08:51,569 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:08:57,553 WARN L539 Checker$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 16:09:08,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:09:23,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:09:28,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:09:32,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:09:36,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:09:38,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:09:39,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:09:42,353 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:09:53,038 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:09:59,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:10:05,314 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:10:08,225 WARN L539 Checker$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 16:10:11,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:10:13,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:10:49,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:10:54,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.16s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:11:04,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:11:16,724 WARN L539 Checker$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 16:11:19,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:11:20,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:11:23,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:11:29,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:11:30,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:11:32,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:11:39,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:11:41,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:11:44,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:11:49,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:11:52,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:11:55,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:12:01,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:12:03,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:12:06,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:12:10,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:12:14,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:12:16,379 WARN L539 Checker$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 16:12:21,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:12:23,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:12:26,842 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:12:30,252 WARN L539 Checker$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 16:12:35,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:12:39,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.49s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:12:43,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:12:46,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:12:47,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 16:12:47,523 INFO L93 Difference]: Finished difference Result 112477 states and 130057 transitions. [2023-12-22 16:12:47,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 16:12:47,528 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 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 1116 [2023-12-22 16:12:47,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 16:12:47,594 INFO L225 Difference]: With dead ends: 112477 [2023-12-22 16:12:47,594 INFO L226 Difference]: Without dead ends: 61415 [2023-12-22 16:12:47,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2230 GetRequests, 2225 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2023-12-22 16:12:47,605 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 1274 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 3942 mSolverCounterSat, 848 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 282.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1274 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 4790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 848 IncrementalHoareTripleChecker+Valid, 3942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 295.3s IncrementalHoareTripleChecker+Time [2023-12-22 16:12:47,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1274 Valid, 122 Invalid, 4790 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [848 Valid, 3942 Invalid, 0 Unknown, 0 Unchecked, 295.3s Time] [2023-12-22 16:12:47,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61415 states. [2023-12-22 16:12:48,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61415 to 54513. [2023-12-22 16:12:48,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54513 states, 54512 states have (on average 1.1433078955092457) internal successors, (62324), 54512 states have internal predecessors, (62324), 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 16:12:48,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54513 states to 54513 states and 62324 transitions. [2023-12-22 16:12:48,270 INFO L78 Accepts]: Start accepts. Automaton has 54513 states and 62324 transitions. Word has length 1116 [2023-12-22 16:12:48,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 16:12:48,271 INFO L495 AbstractCegarLoop]: Abstraction has 54513 states and 62324 transitions. [2023-12-22 16:12:48,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 205.0) internal successors, (820), 4 states have internal predecessors, (820), 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 16:12:48,271 INFO L276 IsEmpty]: Start isEmpty. Operand 54513 states and 62324 transitions. [2023-12-22 16:12:48,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1198 [2023-12-22 16:12:48,282 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 16:12:48,282 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, 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, 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, 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, 1] [2023-12-22 16:12:48,296 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-12-22 16:12:48,487 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 16:12:48,488 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 16:12:48,488 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 16:12:48,488 INFO L85 PathProgramCache]: Analyzing trace with hash 2125403931, now seen corresponding path program 1 times [2023-12-22 16:12:48,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 16:12:48,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [134458994] [2023-12-22 16:12:48,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 16:12:48,492 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 16:12:48,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 16:12:48,493 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 16:12:48,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-12-22 16:12:48,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 16:12:48,845 INFO L262 TraceCheckSpWp]: Trace formula consists of 1281 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-22 16:12:48,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 16:12:52,279 INFO L134 CoverageAnalysis]: Checked inductivity of 1460 backedges. 526 proven. 606 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2023-12-22 16:12:52,279 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 16:12:54,371 INFO L134 CoverageAnalysis]: Checked inductivity of 1460 backedges. 871 proven. 261 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2023-12-22 16:12:54,371 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 16:12:54,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [134458994] [2023-12-22 16:12:54,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [134458994] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 16:12:54,371 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 16:12:54,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-12-22 16:12:54,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566150478] [2023-12-22 16:12:54,372 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 16:12:54,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-22 16:12:54,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 16:12:54,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-22 16:12:54,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-12-22 16:12:54,374 INFO L87 Difference]: Start difference. First operand 54513 states and 62324 transitions. Second operand has 9 states, 9 states have (on average 173.55555555555554) internal successors, (1562), 8 states have internal predecessors, (1562), 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 16:13:53,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 16:13:53,013 INFO L93 Difference]: Finished difference Result 116827 states and 132672 transitions. [2023-12-22 16:13:53,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-22 16:13:53,014 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 173.55555555555554) internal successors, (1562), 8 states have internal predecessors, (1562), 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 1197 [2023-12-22 16:13:53,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 16:13:53,103 INFO L225 Difference]: With dead ends: 116827 [2023-12-22 16:13:53,103 INFO L226 Difference]: Without dead ends: 60035 [2023-12-22 16:13:53,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2400 GetRequests, 2385 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2023-12-22 16:13:53,128 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 6704 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 15027 mSolverCounterSat, 1448 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6704 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 16475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1448 IncrementalHoareTripleChecker+Valid, 15027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 57.7s IncrementalHoareTripleChecker+Time [2023-12-22 16:13:53,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6704 Valid, 157 Invalid, 16475 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1448 Valid, 15027 Invalid, 0 Unknown, 0 Unchecked, 57.7s Time] [2023-12-22 16:13:53,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60035 states. [2023-12-22 16:13:53,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60035 to 56583. [2023-12-22 16:13:53,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56583 states, 56582 states have (on average 1.0736276554381252) internal successors, (60748), 56582 states have internal predecessors, (60748), 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 16:13:53,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56583 states to 56583 states and 60748 transitions. [2023-12-22 16:13:53,752 INFO L78 Accepts]: Start accepts. Automaton has 56583 states and 60748 transitions. Word has length 1197 [2023-12-22 16:13:53,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 16:13:53,753 INFO L495 AbstractCegarLoop]: Abstraction has 56583 states and 60748 transitions. [2023-12-22 16:13:53,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 173.55555555555554) internal successors, (1562), 8 states have internal predecessors, (1562), 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 16:13:53,753 INFO L276 IsEmpty]: Start isEmpty. Operand 56583 states and 60748 transitions. [2023-12-22 16:13:53,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1238 [2023-12-22 16:13:53,773 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 16:13:53,774 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, 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, 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, 1, 1] [2023-12-22 16:13:53,779 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 16:13:53,985 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 16:13:53,986 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 16:13:53,986 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 16:13:53,987 INFO L85 PathProgramCache]: Analyzing trace with hash -507868022, now seen corresponding path program 1 times [2023-12-22 16:13:53,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 16:13:53,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1195430672] [2023-12-22 16:13:53,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 16:13:53,990 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-22 16:13:53,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 16:13:53,991 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 16:13:53,993 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 16:13:54,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 16:13:54,388 INFO L262 TraceCheckSpWp]: Trace formula consists of 1330 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-22 16:13:54,395 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 16:13:55,785 INFO L134 CoverageAnalysis]: Checked inductivity of 1711 backedges. 453 proven. 937 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2023-12-22 16:13:55,786 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 16:14:00,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1711 backedges. 1112 proven. 0 refuted. 0 times theorem prover too weak. 599 trivial. 0 not checked. [2023-12-22 16:14:00,180 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 16:14:00,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1195430672] [2023-12-22 16:14:00,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1195430672] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-22 16:14:00,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-22 16:14:00,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2023-12-22 16:14:00,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788510132] [2023-12-22 16:14:00,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 16:14:00,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-22 16:14:00,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 16:14:00,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-22 16:14:00,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-22 16:14:00,182 INFO L87 Difference]: Start difference. First operand 56583 states and 60748 transitions. Second operand has 4 states, 4 states have (on average 194.75) internal successors, (779), 4 states have internal predecessors, (779), 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 16:14:19,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:14:29,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:14:50,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 16:14:55,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] Received shutdown request... [2023-12-22 16:14:56,452 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 (17)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 16:14:56,452 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 16:14:56,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-22 16:14:56,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2472 GetRequests, 2466 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-22 16:14:56,487 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 1000 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2391 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1000 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 2606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 2391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.1s IncrementalHoareTripleChecker+Time [2023-12-22 16:14:56,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1000 Valid, 41 Invalid, 2606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 2391 Invalid, 0 Unknown, 0 Unchecked, 56.1s Time] [2023-12-22 16:14:56,488 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-22 16:14:56,496 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2023-12-22 16:14:56,688 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 16:14:56,689 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (56583states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (24418 states constructed, input type IntersectNwa). [2023-12-22 16:14:56,692 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 16:14:56,694 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 16:14:56,695 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 04:14:56 BoogieIcfgContainer [2023-12-22 16:14:56,695 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 16:14:56,695 INFO L158 Benchmark]: Toolchain (without parser) took 862947.16ms. Allocated memory was 182.5MB in the beginning and 652.2MB in the end (delta: 469.8MB). Free memory was 126.0MB in the beginning and 372.1MB in the end (delta: -246.0MB). Peak memory consumption was 299.7MB. Max. memory is 8.0GB. [2023-12-22 16:14:56,695 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 182.5MB. Free memory is still 138.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 16:14:56,695 INFO L158 Benchmark]: CACSL2BoogieTranslator took 934.94ms. Allocated memory was 182.5MB in the beginning and 242.2MB in the end (delta: 59.8MB). Free memory was 125.8MB in the beginning and 176.6MB in the end (delta: -50.8MB). Peak memory consumption was 74.5MB. Max. memory is 8.0GB. [2023-12-22 16:14:56,696 INFO L158 Benchmark]: Boogie Procedure Inliner took 164.33ms. Allocated memory is still 242.2MB. Free memory was 176.6MB in the beginning and 150.9MB in the end (delta: 25.7MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2023-12-22 16:14:56,696 INFO L158 Benchmark]: Boogie Preprocessor took 250.91ms. Allocated memory is still 242.2MB. Free memory was 150.9MB in the beginning and 163.1MB in the end (delta: -12.2MB). Peak memory consumption was 16.9MB. Max. memory is 8.0GB. [2023-12-22 16:14:56,696 INFO L158 Benchmark]: RCFGBuilder took 12857.78ms. Allocated memory was 242.2MB in the beginning and 390.1MB in the end (delta: 147.8MB). Free memory was 163.1MB in the beginning and 257.5MB in the end (delta: -94.4MB). Peak memory consumption was 155.5MB. Max. memory is 8.0GB. [2023-12-22 16:14:56,696 INFO L158 Benchmark]: TraceAbstraction took 848732.58ms. Allocated memory was 390.1MB in the beginning and 652.2MB in the end (delta: 262.1MB). Free memory was 256.4MB in the beginning and 372.1MB in the end (delta: -115.6MB). Peak memory consumption was 221.7MB. Max. memory is 8.0GB. [2023-12-22 16:14:56,697 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 182.5MB. Free memory is still 138.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 934.94ms. Allocated memory was 182.5MB in the beginning and 242.2MB in the end (delta: 59.8MB). Free memory was 125.8MB in the beginning and 176.6MB in the end (delta: -50.8MB). Peak memory consumption was 74.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 164.33ms. Allocated memory is still 242.2MB. Free memory was 176.6MB in the beginning and 150.9MB in the end (delta: 25.7MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 250.91ms. Allocated memory is still 242.2MB. Free memory was 150.9MB in the beginning and 163.1MB in the end (delta: -12.2MB). Peak memory consumption was 16.9MB. Max. memory is 8.0GB. * RCFGBuilder took 12857.78ms. Allocated memory was 242.2MB in the beginning and 390.1MB in the end (delta: 147.8MB). Free memory was 163.1MB in the beginning and 257.5MB in the end (delta: -94.4MB). Peak memory consumption was 155.5MB. Max. memory is 8.0GB. * TraceAbstraction took 848732.58ms. Allocated memory was 390.1MB in the beginning and 652.2MB in the end (delta: 262.1MB). Free memory was 256.4MB in the beginning and 372.1MB in the end (delta: -115.6MB). Peak memory consumption was 221.7MB. 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: 97]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 97). Cancelled while NwaCegarLoop was constructing difference of abstraction (56583states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement),while ReachableStatesComputation was computing reachable states (24418 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 695 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 848.7s, OverallIterations: 16, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 801.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16810 SdHoareTripleChecker+Valid, 796.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16810 mSDsluCounter, 9431 SdHoareTripleChecker+Invalid, 728.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 205 mSDsCounter, 9082 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 49292 IncrementalHoareTripleChecker+Invalid, 58374 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9082 mSolverCounterUnsat, 9226 mSDtfsCounter, 49292 mSolverCounterSat, 0.5s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16621 GetRequests, 16573 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56583occurred in iteration=15, InterpolantAutomatonStates: 59, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.7s AutomataMinimizationTime, 15 MinimizatonAttempts, 17258 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 36.6s InterpolantComputationTime, 10118 NumberOfCodeBlocks, 10118 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 16613 ConstructedInterpolants, 0 QuantifiedInterpolants, 53281 SizeOfPredicates, 5 NumberOfNonLiveVariables, 10981 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 22 InterpolantComputations, 15 PerfectInterpolantSequences, 11171/14767 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