/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_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/array-patterns/array27_pattern.c
--------------------------------------------------------------------------------
This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m
[2023-12-15 17:17:41,310 INFO L188 SettingsManager]: Resetting all preferences to default values...
[2023-12-15 17:17:41,367 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2023-12-15 17:17:41,369 WARN L101 SettingsManager]: Preference file contains the following unknown settings:
[2023-12-15 17:17:41,370 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2023-12-15 17:17:41,382 INFO L130 SettingsManager]: Preferences different from defaults after loading the file:
[2023-12-15 17:17:41,382 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2023-12-15 17:17:41,382 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2023-12-15 17:17:41,383 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2023-12-15 17:17:41,383 INFO L153 SettingsManager]: * Use memory slicer=true
[2023-12-15 17:17:41,383 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2023-12-15 17:17:41,383 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2023-12-15 17:17:41,384 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2023-12-15 17:17:41,384 INFO L153 SettingsManager]: * Create parallel compositions if possible=false
[2023-12-15 17:17:41,384 INFO L153 SettingsManager]: * Use SBE=true
[2023-12-15 17:17:41,384 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2023-12-15 17:17:41,385 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2023-12-15 17:17:41,385 INFO L153 SettingsManager]: * sizeof long=4
[2023-12-15 17:17:41,385 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true
[2023-12-15 17:17:41,385 INFO L153 SettingsManager]: * sizeof POINTER=4
[2023-12-15 17:17:41,385 INFO L153 SettingsManager]: * Check division by zero=IGNORE
[2023-12-15 17:17:41,388 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2023-12-15 17:17:41,388 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2023-12-15 17:17:41,389 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2023-12-15 17:17:41,389 INFO L153 SettingsManager]: * Allow undefined functions=false
[2023-12-15 17:17:41,389 INFO L153 SettingsManager]: * sizeof long double=12
[2023-12-15 17:17:41,389 INFO L153 SettingsManager]: * Check if freed pointer was valid=false
[2023-12-15 17:17:41,389 INFO L153 SettingsManager]: * Use constant arrays=true
[2023-12-15 17:17:41,389 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2023-12-15 17:17:41,390 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements
[2023-12-15 17:17:41,390 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true
[2023-12-15 17:17:41,390 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode
[2023-12-15 17:17:41,390 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-15 17:17:41,390 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2023-12-15 17:17:41,391 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2023-12-15 17:17:41,391 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads
[2023-12-15 17:17:41,391 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL
[2023-12-15 17:17:41,391 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2023-12-15 17:17:41,391 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false
[2023-12-15 17:17:41,392 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2023-12-15 17:17:41,392 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2023-12-15 17:17:41,394 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO
[2023-12-15 17:17:41,395 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2023-12-15 17:17:41,395 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true
[2023-12-15 17:17:41,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2023-12-15 17:17:41,601 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2023-12-15 17:17:41,603 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2023-12-15 17:17:41,604 INFO L270 PluginConnector]: Initializing CDTParser...
[2023-12-15 17:17:41,604 INFO L274 PluginConnector]: CDTParser initialized
[2023-12-15 17:17:41,605 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-patterns/array27_pattern.c
[2023-12-15 17:17:42,724 INFO L533 CDTParser]: Created temporary CDT project at NULL
[2023-12-15 17:17:42,881 INFO L384 CDTParser]: Found 1 translation units.
[2023-12-15 17:17:42,882 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-patterns/array27_pattern.c
[2023-12-15 17:17:42,887 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5dd8e134/6cfe6a9fa60449c3a372ceddece9d327/FLAG4dbfb5548
[2023-12-15 17:17:42,900 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5dd8e134/6cfe6a9fa60449c3a372ceddece9d327
[2023-12-15 17:17:42,902 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2023-12-15 17:17:42,903 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements.
[2023-12-15 17:17:42,905 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2023-12-15 17:17:42,905 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2023-12-15 17:17:42,908 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized
[2023-12-15 17:17:42,908 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:17:42" (1/1) ...
[2023-12-15 17:17:42,909 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d6c12b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:17:42, skipping insertion in model container
[2023-12-15 17:17:42,909 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:17:42" (1/1) ...
[2023-12-15 17:17:42,926 INFO L177 MainTranslator]: Built tables and reachable declarations
[2023-12-15 17:17:43,034 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-patterns/array27_pattern.c[1253,1266]
[2023-12-15 17:17:43,055 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-12-15 17:17:43,061 INFO L202 MainTranslator]: Completed pre-run
[2023-12-15 17:17:43,070 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-patterns/array27_pattern.c[1253,1266]
[2023-12-15 17:17:43,083 INFO L209 PostProcessor]: Analyzing one entry point: main
[2023-12-15 17:17:43,094 INFO L206 MainTranslator]: Completed translation
[2023-12-15 17:17:43,095 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:17:43 WrapperNode
[2023-12-15 17:17:43,096 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2023-12-15 17:17:43,097 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2023-12-15 17:17:43,097 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner...
[2023-12-15 17:17:43,097 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized
[2023-12-15 17:17:43,101 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:17:43" (1/1) ...
[2023-12-15 17:17:43,106 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:17:43" (1/1) ...
[2023-12-15 17:17:43,122 INFO L138 Inliner]: procedures = 16, calls = 15, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71
[2023-12-15 17:17:43,122 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2023-12-15 17:17:43,123 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2023-12-15 17:17:43,123 INFO L270 PluginConnector]: Initializing Boogie Preprocessor...
[2023-12-15 17:17:43,123 INFO L274 PluginConnector]: Boogie Preprocessor initialized
[2023-12-15 17:17:43,130 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:17:43" (1/1) ...
[2023-12-15 17:17:43,130 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:17:43" (1/1) ...
[2023-12-15 17:17:43,137 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:17:43" (1/1) ...
[2023-12-15 17:17:43,145 INFO L175 MemorySlicer]: Split 5 memory accesses to 2 slices as follows [2, 3]. 60 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2].
[2023-12-15 17:17:43,146 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:17:43" (1/1) ...
[2023-12-15 17:17:43,146 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:17:43" (1/1) ...
[2023-12-15 17:17:43,148 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:17:43" (1/1) ...
[2023-12-15 17:17:43,150 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:17:43" (1/1) ...
[2023-12-15 17:17:43,151 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:17:43" (1/1) ...
[2023-12-15 17:17:43,151 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:17:43" (1/1) ...
[2023-12-15 17:17:43,153 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2023-12-15 17:17:43,153 INFO L112 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2023-12-15 17:17:43,153 INFO L270 PluginConnector]: Initializing RCFGBuilder...
[2023-12-15 17:17:43,153 INFO L274 PluginConnector]: RCFGBuilder initialized
[2023-12-15 17:17:43,154 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:17:43" (1/1) ...
[2023-12-15 17:17:43,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2023-12-15 17:17:43,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-15 17:17:43,195 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)
[2023-12-15 17:17:43,208 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
[2023-12-15 17:17:43,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2023-12-15 17:17:43,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0
[2023-12-15 17:17:43,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1
[2023-12-15 17:17:43,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2023-12-15 17:17:43,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0
[2023-12-15 17:17:43,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1
[2023-12-15 17:17:43,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2023-12-15 17:17:43,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2023-12-15 17:17:43,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0
[2023-12-15 17:17:43,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1
[2023-12-15 17:17:43,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2023-12-15 17:17:43,262 INFO L241 CfgBuilder]: Building ICFG
[2023-12-15 17:17:43,264 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation
[2023-12-15 17:17:43,431 INFO L282 CfgBuilder]: Performing block encoding
[2023-12-15 17:17:43,451 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2023-12-15 17:17:43,451 INFO L309 CfgBuilder]: Removed 4 assume(true) statements.
[2023-12-15 17:17:43,451 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:17:43 BoogieIcfgContainer
[2023-12-15 17:17:43,451 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2023-12-15 17:17:43,453 INFO L112 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2023-12-15 17:17:43,453 INFO L270 PluginConnector]: Initializing TraceAbstraction...
[2023-12-15 17:17:43,455 INFO L274 PluginConnector]: TraceAbstraction initialized
[2023-12-15 17:17:43,455 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 05:17:42" (1/3) ...
[2023-12-15 17:17:43,455 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49b1856a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 05:17:43, skipping insertion in model container
[2023-12-15 17:17:43,455 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:17:43" (2/3) ...
[2023-12-15 17:17:43,456 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49b1856a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 05:17:43, skipping insertion in model container
[2023-12-15 17:17:43,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:17:43" (3/3) ...
[2023-12-15 17:17:43,456 INFO L112 eAbstractionObserver]: Analyzing ICFG array27_pattern.c
[2023-12-15 17:17:43,467 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2023-12-15 17:17:43,467 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2023-12-15 17:17:43,492 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2023-12-15 17:17:43,496 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;@74fd4a30, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2023-12-15 17:17:43,496 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2023-12-15 17:17:43,498 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 16 states have (on average 1.75) internal successors, (28), 17 states have internal predecessors, (28), 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)
[2023-12-15 17:17:43,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2023-12-15 17:17:43,502 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-15 17:17:43,502 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-15 17:17:43,503 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-15 17:17:43,508 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-15 17:17:43,508 INFO L85 PathProgramCache]: Analyzing trace with hash 77099514, now seen corresponding path program 1 times
[2023-12-15 17:17:43,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-15 17:17:43,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92789129]
[2023-12-15 17:17:43,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-15 17:17:43,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-15 17:17:43,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-15 17:17:43,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-15 17:17:43,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92789129]
[2023-12-15 17:17:43,583 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic
[2023-12-15 17:17:43,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [222842130]
[2023-12-15 17:17:43,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-15 17:17:43,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-15 17:17:43,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-15 17:17:43,593 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-15 17:17:43,596 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2023-12-15 17:17:43,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-15 17:17:43,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 1 conjunts are in the unsatisfiable core
[2023-12-15 17:17:43,644 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-15 17:17:43,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-15 17:17:43,655 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-15 17:17:43,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [222842130] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-15 17:17:43,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-15 17:17:43,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2023-12-15 17:17:43,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087444905]
[2023-12-15 17:17:43,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-15 17:17:43,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2023-12-15 17:17:43,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-15 17:17:43,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2023-12-15 17:17:43,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-15 17:17:43,678 INFO L87 Difference]: Start difference. First operand has 18 states, 16 states have (on average 1.75) internal successors, (28), 17 states have internal predecessors, (28), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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)
[2023-12-15 17:17:43,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-15 17:17:43,691 INFO L93 Difference]: Finished difference Result 34 states and 53 transitions.
[2023-12-15 17:17:43,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2023-12-15 17:17:43,693 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9
[2023-12-15 17:17:43,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-15 17:17:43,697 INFO L225 Difference]: With dead ends: 34
[2023-12-15 17:17:43,697 INFO L226 Difference]: Without dead ends: 16
[2023-12-15 17:17:43,699 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2023-12-15 17:17:43,701 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-15 17:17:43,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-15 17:17:43,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states.
[2023-12-15 17:17:43,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16.
[2023-12-15 17:17:43,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 states have internal predecessors, (20), 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)
[2023-12-15 17:17:43,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions.
[2023-12-15 17:17:43,719 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 9
[2023-12-15 17:17:43,719 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-15 17:17:43,719 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions.
[2023-12-15 17:17:43,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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)
[2023-12-15 17:17:43,720 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions.
[2023-12-15 17:17:43,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2023-12-15 17:17:43,720 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-15 17:17:43,720 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-15 17:17:43,732 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2023-12-15 17:17:43,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2023-12-15 17:17:43,925 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-15 17:17:43,925 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-15 17:17:43,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1391253823, now seen corresponding path program 1 times
[2023-12-15 17:17:43,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-15 17:17:43,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138603388]
[2023-12-15 17:17:43,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-15 17:17:43,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-15 17:17:43,937 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-15 17:17:43,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1164586747]
[2023-12-15 17:17:43,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-15 17:17:43,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-15 17:17:43,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-15 17:17:43,939 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-15 17:17:43,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2023-12-15 17:17:43,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-15 17:17:43,977 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 7 conjunts are in the unsatisfiable core
[2023-12-15 17:17:43,978 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-15 17:17:44,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-15 17:17:44,044 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-15 17:17:44,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-15 17:17:44,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138603388]
[2023-12-15 17:17:44,044 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-15 17:17:44,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1164586747]
[2023-12-15 17:17:44,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1164586747] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-15 17:17:44,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-15 17:17:44,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-15 17:17:44,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348916918]
[2023-12-15 17:17:44,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-15 17:17:44,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2023-12-15 17:17:44,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-15 17:17:44,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2023-12-15 17:17:44,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2023-12-15 17:17:44,048 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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)
[2023-12-15 17:17:44,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-15 17:17:44,109 INFO L93 Difference]: Finished difference Result 32 states and 42 transitions.
[2023-12-15 17:17:44,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2023-12-15 17:17:44,110 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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 9
[2023-12-15 17:17:44,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-15 17:17:44,111 INFO L225 Difference]: With dead ends: 32
[2023-12-15 17:17:44,111 INFO L226 Difference]: Without dead ends: 24
[2023-12-15 17:17:44,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2023-12-15 17:17:44,113 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 28 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-15 17:17:44,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 11 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-15 17:17:44,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states.
[2023-12-15 17:17:44,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 18.
[2023-12-15 17:17:44,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 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)
[2023-12-15 17:17:44,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions.
[2023-12-15 17:17:44,124 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 9
[2023-12-15 17:17:44,124 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-15 17:17:44,124 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions.
[2023-12-15 17:17:44,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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)
[2023-12-15 17:17:44,125 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions.
[2023-12-15 17:17:44,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2023-12-15 17:17:44,125 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-15 17:17:44,125 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-15 17:17:44,129 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0
[2023-12-15 17:17:44,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1
[2023-12-15 17:17:44,330 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-15 17:17:44,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-15 17:17:44,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1398282665, now seen corresponding path program 1 times
[2023-12-15 17:17:44,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-15 17:17:44,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284349001]
[2023-12-15 17:17:44,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-15 17:17:44,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-15 17:17:44,352 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-15 17:17:44,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1252698229]
[2023-12-15 17:17:44,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-15 17:17:44,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-15 17:17:44,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-15 17:17:44,359 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-15 17:17:44,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2023-12-15 17:17:44,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-15 17:17:44,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjunts are in the unsatisfiable core
[2023-12-15 17:17:44,408 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-15 17:17:44,430 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-12-15 17:17:44,430 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2023-12-15 17:17:44,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-15 17:17:44,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284349001]
[2023-12-15 17:17:44,430 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-15 17:17:44,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252698229]
[2023-12-15 17:17:44,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1252698229] provided 1 perfect and 0 imperfect interpolant sequences
[2023-12-15 17:17:44,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2023-12-15 17:17:44,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2023-12-15 17:17:44,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362278367]
[2023-12-15 17:17:44,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2023-12-15 17:17:44,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2023-12-15 17:17:44,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-15 17:17:44,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2023-12-15 17:17:44,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2023-12-15 17:17:44,433 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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)
[2023-12-15 17:17:44,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-15 17:17:44,477 INFO L93 Difference]: Finished difference Result 36 states and 47 transitions.
[2023-12-15 17:17:44,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2023-12-15 17:17:44,477 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 15
[2023-12-15 17:17:44,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-15 17:17:44,478 INFO L225 Difference]: With dead ends: 36
[2023-12-15 17:17:44,478 INFO L226 Difference]: Without dead ends: 22
[2023-12-15 17:17:44,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2023-12-15 17:17:44,480 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 22 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-15 17:17:44,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 13 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-15 17:17:44,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states.
[2023-12-15 17:17:44,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20.
[2023-12-15 17:17:44,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 states have internal predecessors, (24), 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)
[2023-12-15 17:17:44,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions.
[2023-12-15 17:17:44,492 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 15
[2023-12-15 17:17:44,492 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-15 17:17:44,492 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions.
[2023-12-15 17:17:44,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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)
[2023-12-15 17:17:44,493 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions.
[2023-12-15 17:17:44,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20
[2023-12-15 17:17:44,494 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-15 17:17:44,494 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-15 17:17:44,501 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0
[2023-12-15 17:17:44,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-15 17:17:44,699 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-15 17:17:44,699 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-15 17:17:44,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1830707515, now seen corresponding path program 1 times
[2023-12-15 17:17:44,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-15 17:17:44,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671627890]
[2023-12-15 17:17:44,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-15 17:17:44,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-15 17:17:44,724 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-15 17:17:44,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [946364564]
[2023-12-15 17:17:44,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-15 17:17:44,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-15 17:17:44,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-15 17:17:44,726 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-15 17:17:44,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2023-12-15 17:17:44,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-15 17:17:44,785 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 30 conjunts are in the unsatisfiable core
[2023-12-15 17:17:44,789 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-15 17:17:44,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2023-12-15 17:17:45,056 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-15 17:17:45,056 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-15 17:17:45,227 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 33
[2023-12-15 17:17:45,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 53
[2023-12-15 17:17:45,309 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-15 17:17:45,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-15 17:17:45,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671627890]
[2023-12-15 17:17:45,310 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-15 17:17:45,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946364564]
[2023-12-15 17:17:45,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [946364564] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-15 17:17:45,310 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-15 17:17:45,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 22
[2023-12-15 17:17:45,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020306866]
[2023-12-15 17:17:45,310 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-15 17:17:45,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states
[2023-12-15 17:17:45,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-15 17:17:45,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants.
[2023-12-15 17:17:45,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462
[2023-12-15 17:17:45,312 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. Second operand has 22 states, 22 states have (on average 1.6818181818181819) internal successors, (37), 22 states have internal predecessors, (37), 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)
[2023-12-15 17:17:46,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-15 17:17:46,232 INFO L93 Difference]: Finished difference Result 91 states and 118 transitions.
[2023-12-15 17:17:46,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states.
[2023-12-15 17:17:46,233 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 1.6818181818181819) internal successors, (37), 22 states have internal predecessors, (37), 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 19
[2023-12-15 17:17:46,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-15 17:17:46,234 INFO L225 Difference]: With dead ends: 91
[2023-12-15 17:17:46,234 INFO L226 Difference]: Without dead ends: 71
[2023-12-15 17:17:46,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=480, Invalid=1682, Unknown=0, NotChecked=0, Total=2162
[2023-12-15 17:17:46,236 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 167 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2023-12-15 17:17:46,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 37 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2023-12-15 17:17:46,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states.
[2023-12-15 17:17:46,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 53.
[2023-12-15 17:17:46,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.3653846153846154) internal successors, (71), 52 states have internal predecessors, (71), 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)
[2023-12-15 17:17:46,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 71 transitions.
[2023-12-15 17:17:46,252 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 71 transitions. Word has length 19
[2023-12-15 17:17:46,252 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-15 17:17:46,252 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 71 transitions.
[2023-12-15 17:17:46,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 1.6818181818181819) internal successors, (37), 22 states have internal predecessors, (37), 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)
[2023-12-15 17:17:46,253 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 71 transitions.
[2023-12-15 17:17:46,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2023-12-15 17:17:46,253 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-15 17:17:46,253 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-15 17:17:46,261 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0
[2023-12-15 17:17:46,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-15 17:17:46,459 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-15 17:17:46,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-15 17:17:46,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1164410710, now seen corresponding path program 2 times
[2023-12-15 17:17:46,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-15 17:17:46,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126311427]
[2023-12-15 17:17:46,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-15 17:17:46,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-15 17:17:46,485 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-15 17:17:46,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1359503690]
[2023-12-15 17:17:46,485 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2023-12-15 17:17:46,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-15 17:17:46,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-15 17:17:46,497 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-15 17:17:46,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2023-12-15 17:17:46,549 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2023-12-15 17:17:46,551 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2023-12-15 17:17:46,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-15 17:17:46,557 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-15 17:17:46,591 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-15 17:17:46,591 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-15 17:17:46,627 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2023-12-15 17:17:46,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-15 17:17:46,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126311427]
[2023-12-15 17:17:46,628 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-15 17:17:46,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359503690]
[2023-12-15 17:17:46,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359503690] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-15 17:17:46,628 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-15 17:17:46,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9
[2023-12-15 17:17:46,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678115186]
[2023-12-15 17:17:46,628 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-15 17:17:46,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-12-15 17:17:46,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-15 17:17:46,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-12-15 17:17:46,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72
[2023-12-15 17:17:46,631 INFO L87 Difference]: Start difference. First operand 53 states and 71 transitions. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 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)
[2023-12-15 17:17:46,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-15 17:17:46,716 INFO L93 Difference]: Finished difference Result 154 states and 203 transitions.
[2023-12-15 17:17:46,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2023-12-15 17:17:46,717 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 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 20
[2023-12-15 17:17:46,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-15 17:17:46,720 INFO L225 Difference]: With dead ends: 154
[2023-12-15 17:17:46,720 INFO L226 Difference]: Without dead ends: 98
[2023-12-15 17:17:46,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 28 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132
[2023-12-15 17:17:46,721 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 69 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-15 17:17:46,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 41 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-15 17:17:46,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states.
[2023-12-15 17:17:46,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 73.
[2023-12-15 17:17:46,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.3055555555555556) internal successors, (94), 72 states have internal predecessors, (94), 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)
[2023-12-15 17:17:46,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 94 transitions.
[2023-12-15 17:17:46,749 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 94 transitions. Word has length 20
[2023-12-15 17:17:46,749 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-15 17:17:46,749 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 94 transitions.
[2023-12-15 17:17:46,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 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)
[2023-12-15 17:17:46,749 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 94 transitions.
[2023-12-15 17:17:46,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2023-12-15 17:17:46,750 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-15 17:17:46,750 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-15 17:17:46,757 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0
[2023-12-15 17:17:46,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-15 17:17:46,955 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-15 17:17:46,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-15 17:17:46,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1647128868, now seen corresponding path program 1 times
[2023-12-15 17:17:46,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-15 17:17:46,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747608110]
[2023-12-15 17:17:46,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-15 17:17:46,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-15 17:17:46,965 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-15 17:17:46,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1142885287]
[2023-12-15 17:17:46,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-15 17:17:46,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-15 17:17:46,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-15 17:17:46,968 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-15 17:17:46,970 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2023-12-15 17:17:47,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-15 17:17:47,011 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-15 17:17:47,012 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-15 17:17:47,048 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2023-12-15 17:17:47,048 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-15 17:17:47,077 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2023-12-15 17:17:47,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-15 17:17:47,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747608110]
[2023-12-15 17:17:47,078 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-15 17:17:47,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142885287]
[2023-12-15 17:17:47,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142885287] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-15 17:17:47,078 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-15 17:17:47,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11
[2023-12-15 17:17:47,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585332298]
[2023-12-15 17:17:47,078 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-15 17:17:47,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states
[2023-12-15 17:17:47,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-15 17:17:47,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2023-12-15 17:17:47,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110
[2023-12-15 17:17:47,079 INFO L87 Difference]: Start difference. First operand 73 states and 94 transitions. Second operand has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 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)
[2023-12-15 17:17:47,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-15 17:17:47,255 INFO L93 Difference]: Finished difference Result 165 states and 219 transitions.
[2023-12-15 17:17:47,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2023-12-15 17:17:47,256 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 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 22
[2023-12-15 17:17:47,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-15 17:17:47,256 INFO L225 Difference]: With dead ends: 165
[2023-12-15 17:17:47,256 INFO L226 Difference]: Without dead ends: 102
[2023-12-15 17:17:47,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=126, Invalid=294, Unknown=0, NotChecked=0, Total=420
[2023-12-15 17:17:47,257 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 48 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-15 17:17:47,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 27 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-15 17:17:47,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states.
[2023-12-15 17:17:47,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 65.
[2023-12-15 17:17:47,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 64 states have (on average 1.296875) internal successors, (83), 64 states have internal predecessors, (83), 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)
[2023-12-15 17:17:47,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 83 transitions.
[2023-12-15 17:17:47,276 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 83 transitions. Word has length 22
[2023-12-15 17:17:47,276 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-15 17:17:47,276 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 83 transitions.
[2023-12-15 17:17:47,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 11 states have internal predecessors, (32), 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)
[2023-12-15 17:17:47,276 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 83 transitions.
[2023-12-15 17:17:47,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2023-12-15 17:17:47,277 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-15 17:17:47,277 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-15 17:17:47,281 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0
[2023-12-15 17:17:47,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-15 17:17:47,481 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-15 17:17:47,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-15 17:17:47,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1175902674, now seen corresponding path program 1 times
[2023-12-15 17:17:47,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-15 17:17:47,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744586832]
[2023-12-15 17:17:47,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-15 17:17:47,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-15 17:17:47,493 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-15 17:17:47,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1020690354]
[2023-12-15 17:17:47,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-15 17:17:47,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-15 17:17:47,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-15 17:17:47,507 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-15 17:17:47,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2023-12-15 17:17:47,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-15 17:17:47,545 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-15 17:17:47,547 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-15 17:17:47,582 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2023-12-15 17:17:47,582 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-15 17:17:47,615 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2023-12-15 17:17:47,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-15 17:17:47,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744586832]
[2023-12-15 17:17:47,615 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-15 17:17:47,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020690354]
[2023-12-15 17:17:47,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020690354] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-15 17:17:47,617 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-15 17:17:47,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9
[2023-12-15 17:17:47,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303347219]
[2023-12-15 17:17:47,618 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-15 17:17:47,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-12-15 17:17:47,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-15 17:17:47,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-12-15 17:17:47,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72
[2023-12-15 17:17:47,619 INFO L87 Difference]: Start difference. First operand 65 states and 83 transitions. Second operand has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 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)
[2023-12-15 17:17:47,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-15 17:17:47,732 INFO L93 Difference]: Finished difference Result 91 states and 109 transitions.
[2023-12-15 17:17:47,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2023-12-15 17:17:47,732 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 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 23
[2023-12-15 17:17:47,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-15 17:17:47,733 INFO L225 Difference]: With dead ends: 91
[2023-12-15 17:17:47,733 INFO L226 Difference]: Without dead ends: 71
[2023-12-15 17:17:47,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 34 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210
[2023-12-15 17:17:47,734 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 42 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-15 17:17:47,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 33 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-15 17:17:47,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states.
[2023-12-15 17:17:47,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 56.
[2023-12-15 17:17:47,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.2727272727272727) internal successors, (70), 55 states have internal predecessors, (70), 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)
[2023-12-15 17:17:47,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 70 transitions.
[2023-12-15 17:17:47,750 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 70 transitions. Word has length 23
[2023-12-15 17:17:47,751 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-15 17:17:47,751 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 70 transitions.
[2023-12-15 17:17:47,751 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 9 states have internal predecessors, (29), 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)
[2023-12-15 17:17:47,751 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 70 transitions.
[2023-12-15 17:17:47,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29
[2023-12-15 17:17:47,754 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-15 17:17:47,754 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-15 17:17:47,758 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0
[2023-12-15 17:17:47,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-15 17:17:47,958 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-15 17:17:47,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-15 17:17:47,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1961030341, now seen corresponding path program 2 times
[2023-12-15 17:17:47,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-15 17:17:47,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030245436]
[2023-12-15 17:17:47,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-15 17:17:47,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-15 17:17:47,969 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-15 17:17:47,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [703549415]
[2023-12-15 17:17:47,970 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2023-12-15 17:17:47,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-15 17:17:47,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-15 17:17:47,981 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-15 17:17:48,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process
[2023-12-15 17:17:48,056 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2023-12-15 17:17:48,056 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2023-12-15 17:17:48,057 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 6 conjunts are in the unsatisfiable core
[2023-12-15 17:17:48,058 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-15 17:17:48,094 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2023-12-15 17:17:48,094 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-15 17:17:48,124 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2023-12-15 17:17:48,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-15 17:17:48,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030245436]
[2023-12-15 17:17:48,124 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-15 17:17:48,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [703549415]
[2023-12-15 17:17:48,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [703549415] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-15 17:17:48,124 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-15 17:17:48,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9
[2023-12-15 17:17:48,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534659175]
[2023-12-15 17:17:48,124 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-15 17:17:48,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-12-15 17:17:48,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-15 17:17:48,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-12-15 17:17:48,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72
[2023-12-15 17:17:48,125 INFO L87 Difference]: Start difference. First operand 56 states and 70 transitions. Second operand has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 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)
[2023-12-15 17:17:48,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-15 17:17:48,199 INFO L93 Difference]: Finished difference Result 67 states and 81 transitions.
[2023-12-15 17:17:48,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2023-12-15 17:17:48,199 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 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 28
[2023-12-15 17:17:48,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-15 17:17:48,199 INFO L225 Difference]: With dead ends: 67
[2023-12-15 17:17:48,199 INFO L226 Difference]: Without dead ends: 47
[2023-12-15 17:17:48,200 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 44 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182
[2023-12-15 17:17:48,201 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 44 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-15 17:17:48,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 28 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-15 17:17:48,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states.
[2023-12-15 17:17:48,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 40.
[2023-12-15 17:17:48,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 39 states have internal predecessors, (49), 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)
[2023-12-15 17:17:48,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 49 transitions.
[2023-12-15 17:17:48,212 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 49 transitions. Word has length 28
[2023-12-15 17:17:48,212 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-15 17:17:48,212 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 49 transitions.
[2023-12-15 17:17:48,212 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 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)
[2023-12-15 17:17:48,212 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 49 transitions.
[2023-12-15 17:17:48,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38
[2023-12-15 17:17:48,221 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-15 17:17:48,221 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-15 17:17:48,228 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0
[2023-12-15 17:17:48,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7
[2023-12-15 17:17:48,425 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-15 17:17:48,426 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-15 17:17:48,426 INFO L85 PathProgramCache]: Analyzing trace with hash -637697851, now seen corresponding path program 3 times
[2023-12-15 17:17:48,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-15 17:17:48,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327345910]
[2023-12-15 17:17:48,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-15 17:17:48,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-15 17:17:48,433 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-15 17:17:48,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [294736185]
[2023-12-15 17:17:48,433 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2023-12-15 17:17:48,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-15 17:17:48,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-15 17:17:48,434 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-15 17:17:48,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process
[2023-12-15 17:17:48,512 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s)
[2023-12-15 17:17:48,512 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2023-12-15 17:17:48,514 INFO L262 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 68 conjunts are in the unsatisfiable core
[2023-12-15 17:17:48,516 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-15 17:17:48,582 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2023-12-15 17:17:48,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18
[2023-12-15 17:17:48,750 INFO L349 Elim1Store]: treesize reduction 32, result has 49.2 percent of original size
[2023-12-15 17:17:48,751 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 34 treesize of output 52
[2023-12-15 17:17:48,952 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:17:48,954 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:17:48,956 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:17:48,964 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size
[2023-12-15 17:17:48,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 66 treesize of output 71
[2023-12-15 17:17:49,595 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:17:49,596 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:17:49,596 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:17:49,597 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:17:49,598 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:17:49,599 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:17:49,600 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:17:49,600 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:17:49,601 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:17:49,604 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:17:49,612 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-15 17:17:49,612 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 72 treesize of output 44
[2023-12-15 17:17:49,692 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 5 proven. 44 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-12-15 17:17:49,692 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-15 17:17:50,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 48
[2023-12-15 17:17:50,716 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-15 17:17:50,716 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 380 treesize of output 340
[2023-12-15 17:17:50,833 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-12-15 17:17:50,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-15 17:17:50,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327345910]
[2023-12-15 17:17:50,834 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-15 17:17:50,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294736185]
[2023-12-15 17:17:50,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294736185] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-15 17:17:50,834 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-15 17:17:50,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 24] total 46
[2023-12-15 17:17:50,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250419993]
[2023-12-15 17:17:50,834 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-15 17:17:50,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states
[2023-12-15 17:17:50,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-15 17:17:50,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants.
[2023-12-15 17:17:50,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=317, Invalid=1753, Unknown=0, NotChecked=0, Total=2070
[2023-12-15 17:17:50,835 INFO L87 Difference]: Start difference. First operand 40 states and 49 transitions. Second operand has 46 states, 46 states have (on average 1.5869565217391304) internal successors, (73), 46 states have internal predecessors, (73), 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)
[2023-12-15 17:18:14,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-15 17:18:14,093 INFO L93 Difference]: Finished difference Result 258 states and 325 transitions.
[2023-12-15 17:18:14,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 176 states.
[2023-12-15 17:18:14,093 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 1.5869565217391304) internal successors, (73), 46 states have internal predecessors, (73), 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 37
[2023-12-15 17:18:14,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-15 17:18:14,097 INFO L225 Difference]: With dead ends: 258
[2023-12-15 17:18:14,097 INFO L226 Difference]: Without dead ends: 218
[2023-12-15 17:18:14,127 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 209 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16757 ImplicationChecksByTransitivity, 20.3s TimeCoverageRelationStatistics Valid=5074, Invalid=39236, Unknown=0, NotChecked=0, Total=44310
[2023-12-15 17:18:14,128 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 301 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 1553 mSolverCounterSat, 388 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 1941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 388 IncrementalHoareTripleChecker+Valid, 1553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time
[2023-12-15 17:18:14,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 100 Invalid, 1941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [388 Valid, 1553 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time]
[2023-12-15 17:18:14,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states.
[2023-12-15 17:18:14,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 137.
[2023-12-15 17:18:14,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 136 states have (on average 1.3161764705882353) internal successors, (179), 136 states have internal predecessors, (179), 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)
[2023-12-15 17:18:14,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 179 transitions.
[2023-12-15 17:18:14,173 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 179 transitions. Word has length 37
[2023-12-15 17:18:14,173 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-15 17:18:14,173 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 179 transitions.
[2023-12-15 17:18:14,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 1.5869565217391304) internal successors, (73), 46 states have internal predecessors, (73), 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)
[2023-12-15 17:18:14,173 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 179 transitions.
[2023-12-15 17:18:14,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38
[2023-12-15 17:18:14,174 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-15 17:18:14,174 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-15 17:18:14,178 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0
[2023-12-15 17:18:14,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-15 17:18:14,378 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-15 17:18:14,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-15 17:18:14,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1455346301, now seen corresponding path program 4 times
[2023-12-15 17:18:14,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-15 17:18:14,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217130793]
[2023-12-15 17:18:14,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-15 17:18:14,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-15 17:18:14,397 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-15 17:18:14,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [886046117]
[2023-12-15 17:18:14,398 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2023-12-15 17:18:14,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-15 17:18:14,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-15 17:18:14,413 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-15 17:18:14,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process
[2023-12-15 17:18:14,478 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2023-12-15 17:18:14,478 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2023-12-15 17:18:14,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 11 conjunts are in the unsatisfiable core
[2023-12-15 17:18:14,480 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-15 17:18:14,512 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 14 proven. 15 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked.
[2023-12-15 17:18:14,513 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-15 17:18:14,536 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 12 proven. 17 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked.
[2023-12-15 17:18:14,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-15 17:18:14,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217130793]
[2023-12-15 17:18:14,536 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-15 17:18:14,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886046117]
[2023-12-15 17:18:14,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886046117] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-15 17:18:14,536 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-15 17:18:14,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9
[2023-12-15 17:18:14,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397777145]
[2023-12-15 17:18:14,537 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-15 17:18:14,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2023-12-15 17:18:14,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-15 17:18:14,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2023-12-15 17:18:14,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72
[2023-12-15 17:18:14,538 INFO L87 Difference]: Start difference. First operand 137 states and 179 transitions. Second operand has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 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)
[2023-12-15 17:18:14,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-15 17:18:14,654 INFO L93 Difference]: Finished difference Result 261 states and 338 transitions.
[2023-12-15 17:18:14,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states.
[2023-12-15 17:18:14,654 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 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 37
[2023-12-15 17:18:14,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-15 17:18:14,654 INFO L225 Difference]: With dead ends: 261
[2023-12-15 17:18:14,655 INFO L226 Difference]: Without dead ends: 174
[2023-12-15 17:18:14,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90
[2023-12-15 17:18:14,655 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 21 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-15 17:18:14,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 43 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-15 17:18:14,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states.
[2023-12-15 17:18:14,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 151.
[2023-12-15 17:18:14,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 150 states have (on average 1.2733333333333334) internal successors, (191), 150 states have internal predecessors, (191), 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)
[2023-12-15 17:18:14,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 191 transitions.
[2023-12-15 17:18:14,713 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 191 transitions. Word has length 37
[2023-12-15 17:18:14,713 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-15 17:18:14,713 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 191 transitions.
[2023-12-15 17:18:14,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 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)
[2023-12-15 17:18:14,714 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 191 transitions.
[2023-12-15 17:18:14,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39
[2023-12-15 17:18:14,715 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-15 17:18:14,715 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-15 17:18:14,721 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0
[2023-12-15 17:18:14,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2023-12-15 17:18:14,919 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-15 17:18:14,919 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-15 17:18:14,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1459150506, now seen corresponding path program 5 times
[2023-12-15 17:18:14,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-15 17:18:14,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986764278]
[2023-12-15 17:18:14,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-15 17:18:14,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-15 17:18:14,926 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-15 17:18:14,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [237044048]
[2023-12-15 17:18:14,926 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2023-12-15 17:18:14,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-15 17:18:14,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-15 17:18:14,930 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-15 17:18:14,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process
[2023-12-15 17:18:14,983 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s)
[2023-12-15 17:18:14,983 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2023-12-15 17:18:14,983 INFO L262 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 12 conjunts are in the unsatisfiable core
[2023-12-15 17:18:14,984 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-15 17:18:15,077 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 31 proven. 21 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2023-12-15 17:18:15,077 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-15 17:18:15,210 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 27 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked.
[2023-12-15 17:18:15,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-15 17:18:15,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986764278]
[2023-12-15 17:18:15,211 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-15 17:18:15,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [237044048]
[2023-12-15 17:18:15,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [237044048] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-15 17:18:15,211 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-15 17:18:15,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23
[2023-12-15 17:18:15,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76014662]
[2023-12-15 17:18:15,211 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-15 17:18:15,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states
[2023-12-15 17:18:15,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-15 17:18:15,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants.
[2023-12-15 17:18:15,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=397, Unknown=0, NotChecked=0, Total=506
[2023-12-15 17:18:15,212 INFO L87 Difference]: Start difference. First operand 151 states and 191 transitions. Second operand has 23 states, 23 states have (on average 2.347826086956522) internal successors, (54), 23 states have internal predecessors, (54), 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)
[2023-12-15 17:18:16,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-15 17:18:16,083 INFO L93 Difference]: Finished difference Result 470 states and 590 transitions.
[2023-12-15 17:18:16,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states.
[2023-12-15 17:18:16,084 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.347826086956522) internal successors, (54), 23 states have internal predecessors, (54), 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 38
[2023-12-15 17:18:16,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-15 17:18:16,085 INFO L225 Difference]: With dead ends: 470
[2023-12-15 17:18:16,086 INFO L226 Difference]: Without dead ends: 294
[2023-12-15 17:18:16,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 67 SyntacticMatches, 1 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2008 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1456, Invalid=4706, Unknown=0, NotChecked=0, Total=6162
[2023-12-15 17:18:16,089 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 157 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2023-12-15 17:18:16,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [157 Valid, 42 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2023-12-15 17:18:16,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states.
[2023-12-15 17:18:16,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 222.
[2023-12-15 17:18:16,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 221 states have (on average 1.2262443438914028) internal successors, (271), 221 states have internal predecessors, (271), 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)
[2023-12-15 17:18:16,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 271 transitions.
[2023-12-15 17:18:16,148 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 271 transitions. Word has length 38
[2023-12-15 17:18:16,148 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-15 17:18:16,148 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 271 transitions.
[2023-12-15 17:18:16,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.347826086956522) internal successors, (54), 23 states have internal predecessors, (54), 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)
[2023-12-15 17:18:16,148 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 271 transitions.
[2023-12-15 17:18:16,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42
[2023-12-15 17:18:16,149 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-15 17:18:16,149 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-15 17:18:16,161 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0
[2023-12-15 17:18:16,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10
[2023-12-15 17:18:16,352 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-15 17:18:16,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-15 17:18:16,352 INFO L85 PathProgramCache]: Analyzing trace with hash 924752363, now seen corresponding path program 6 times
[2023-12-15 17:18:16,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-15 17:18:16,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640118062]
[2023-12-15 17:18:16,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-15 17:18:16,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-15 17:18:16,360 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-15 17:18:16,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [820067803]
[2023-12-15 17:18:16,361 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
[2023-12-15 17:18:16,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-15 17:18:16,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-15 17:18:16,363 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-15 17:18:16,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process
[2023-12-15 17:18:16,404 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s)
[2023-12-15 17:18:16,404 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2023-12-15 17:18:16,404 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core
[2023-12-15 17:18:16,405 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-15 17:18:16,579 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 9 proven. 29 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked.
[2023-12-15 17:18:16,579 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-15 17:18:16,713 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 14 proven. 24 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked.
[2023-12-15 17:18:16,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-15 17:18:16,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640118062]
[2023-12-15 17:18:16,713 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-15 17:18:16,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [820067803]
[2023-12-15 17:18:16,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [820067803] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-15 17:18:16,713 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-15 17:18:16,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 20
[2023-12-15 17:18:16,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276964087]
[2023-12-15 17:18:16,714 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-15 17:18:16,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states
[2023-12-15 17:18:16,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-15 17:18:16,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2023-12-15 17:18:16,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=279, Unknown=0, NotChecked=0, Total=380
[2023-12-15 17:18:16,714 INFO L87 Difference]: Start difference. First operand 222 states and 271 transitions. Second operand has 20 states, 20 states have (on average 2.55) internal successors, (51), 20 states have internal predecessors, (51), 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)
[2023-12-15 17:18:17,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-15 17:18:17,404 INFO L93 Difference]: Finished difference Result 318 states and 384 transitions.
[2023-12-15 17:18:17,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states.
[2023-12-15 17:18:17,404 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.55) internal successors, (51), 20 states have internal predecessors, (51), 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 41
[2023-12-15 17:18:17,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-15 17:18:17,405 INFO L225 Difference]: With dead ends: 318
[2023-12-15 17:18:17,405 INFO L226 Difference]: Without dead ends: 242
[2023-12-15 17:18:17,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 61 SyntacticMatches, 1 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1138 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=713, Invalid=2479, Unknown=0, NotChecked=0, Total=3192
[2023-12-15 17:18:17,407 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 61 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-15 17:18:17,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 44 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-15 17:18:17,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states.
[2023-12-15 17:18:17,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 193.
[2023-12-15 17:18:17,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 192 states have (on average 1.1614583333333333) internal successors, (223), 192 states have internal predecessors, (223), 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)
[2023-12-15 17:18:17,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 223 transitions.
[2023-12-15 17:18:17,451 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 223 transitions. Word has length 41
[2023-12-15 17:18:17,452 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-15 17:18:17,452 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 223 transitions.
[2023-12-15 17:18:17,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.55) internal successors, (51), 20 states have internal predecessors, (51), 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)
[2023-12-15 17:18:17,452 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 223 transitions.
[2023-12-15 17:18:17,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57
[2023-12-15 17:18:17,452 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-15 17:18:17,452 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 6, 5, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-15 17:18:17,458 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0
[2023-12-15 17:18:17,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11
[2023-12-15 17:18:17,656 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-15 17:18:17,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-15 17:18:17,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1753201201, now seen corresponding path program 7 times
[2023-12-15 17:18:17,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-15 17:18:17,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480814451]
[2023-12-15 17:18:17,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-15 17:18:17,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-15 17:18:17,667 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-15 17:18:17,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1817751070]
[2023-12-15 17:18:17,667 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2023-12-15 17:18:17,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-15 17:18:17,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-15 17:18:17,672 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-15 17:18:17,675 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process
[2023-12-15 17:18:17,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2023-12-15 17:18:17,738 INFO L262 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-12-15 17:18:17,739 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-15 17:18:17,808 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 23 proven. 58 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked.
[2023-12-15 17:18:17,808 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-15 17:18:17,884 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 11 proven. 70 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked.
[2023-12-15 17:18:17,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-15 17:18:17,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [480814451]
[2023-12-15 17:18:17,884 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-15 17:18:17,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1817751070]
[2023-12-15 17:18:17,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1817751070] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-15 17:18:17,884 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-15 17:18:17,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12
[2023-12-15 17:18:17,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147676112]
[2023-12-15 17:18:17,884 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-15 17:18:17,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2023-12-15 17:18:17,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-15 17:18:17,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2023-12-15 17:18:17,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132
[2023-12-15 17:18:17,886 INFO L87 Difference]: Start difference. First operand 193 states and 223 transitions. Second operand has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 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)
[2023-12-15 17:18:17,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-15 17:18:17,996 INFO L93 Difference]: Finished difference Result 242 states and 280 transitions.
[2023-12-15 17:18:18,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2023-12-15 17:18:18,004 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 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 56
[2023-12-15 17:18:18,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-15 17:18:18,004 INFO L225 Difference]: With dead ends: 242
[2023-12-15 17:18:18,004 INFO L226 Difference]: Without dead ends: 142
[2023-12-15 17:18:18,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 96 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342
[2023-12-15 17:18:18,005 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 43 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2023-12-15 17:18:18,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 28 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2023-12-15 17:18:18,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states.
[2023-12-15 17:18:18,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 73.
[2023-12-15 17:18:18,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.1527777777777777) internal successors, (83), 72 states have internal predecessors, (83), 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)
[2023-12-15 17:18:18,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 83 transitions.
[2023-12-15 17:18:18,042 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 83 transitions. Word has length 56
[2023-12-15 17:18:18,042 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-15 17:18:18,042 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 83 transitions.
[2023-12-15 17:18:18,042 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 12 states have internal predecessors, (37), 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)
[2023-12-15 17:18:18,042 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 83 transitions.
[2023-12-15 17:18:18,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58
[2023-12-15 17:18:18,043 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-15 17:18:18,043 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 6, 6, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-15 17:18:18,049 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0
[2023-12-15 17:18:18,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12
[2023-12-15 17:18:18,247 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-15 17:18:18,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-15 17:18:18,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1732390210, now seen corresponding path program 8 times
[2023-12-15 17:18:18,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-15 17:18:18,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064096540]
[2023-12-15 17:18:18,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-15 17:18:18,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-15 17:18:18,253 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-15 17:18:18,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1086024708]
[2023-12-15 17:18:18,254 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2023-12-15 17:18:18,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-15 17:18:18,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-15 17:18:18,277 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-15 17:18:18,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process
[2023-12-15 17:18:18,343 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2023-12-15 17:18:18,343 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2023-12-15 17:18:18,344 INFO L262 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 8 conjunts are in the unsatisfiable core
[2023-12-15 17:18:18,348 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-15 17:18:18,426 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 8 proven. 75 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked.
[2023-12-15 17:18:18,426 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-15 17:18:18,490 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 8 proven. 75 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked.
[2023-12-15 17:18:18,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-15 17:18:18,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064096540]
[2023-12-15 17:18:18,490 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-15 17:18:18,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1086024708]
[2023-12-15 17:18:18,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1086024708] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-15 17:18:18,490 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-15 17:18:18,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12
[2023-12-15 17:18:18,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011898291]
[2023-12-15 17:18:18,491 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-15 17:18:18,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states
[2023-12-15 17:18:18,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-15 17:18:18,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2023-12-15 17:18:18,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132
[2023-12-15 17:18:18,491 INFO L87 Difference]: Start difference. First operand 73 states and 83 transitions. Second operand has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 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)
[2023-12-15 17:18:18,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2023-12-15 17:18:18,679 INFO L93 Difference]: Finished difference Result 95 states and 107 transitions.
[2023-12-15 17:18:18,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states.
[2023-12-15 17:18:18,679 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 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 57
[2023-12-15 17:18:18,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2023-12-15 17:18:18,680 INFO L225 Difference]: With dead ends: 95
[2023-12-15 17:18:18,680 INFO L226 Difference]: Without dead ends: 91
[2023-12-15 17:18:18,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 98 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=238, Invalid=518, Unknown=0, NotChecked=0, Total=756
[2023-12-15 17:18:18,681 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 41 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2023-12-15 17:18:18,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 15 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2023-12-15 17:18:18,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states.
[2023-12-15 17:18:18,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 79.
[2023-12-15 17:18:18,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 78 states have (on average 1.1538461538461537) internal successors, (90), 78 states have internal predecessors, (90), 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)
[2023-12-15 17:18:18,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 90 transitions.
[2023-12-15 17:18:18,703 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 90 transitions. Word has length 57
[2023-12-15 17:18:18,703 INFO L84 Accepts]: Finished accepts. word is rejected.
[2023-12-15 17:18:18,703 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 90 transitions.
[2023-12-15 17:18:18,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 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)
[2023-12-15 17:18:18,703 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 90 transitions.
[2023-12-15 17:18:18,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64
[2023-12-15 17:18:18,703 INFO L187 NwaCegarLoop]: Found error trace
[2023-12-15 17:18:18,703 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2023-12-15 17:18:18,708 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0
[2023-12-15 17:18:18,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-15 17:18:18,908 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2023-12-15 17:18:18,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier
[2023-12-15 17:18:18,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1068034807, now seen corresponding path program 9 times
[2023-12-15 17:18:18,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2023-12-15 17:18:18,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276610345]
[2023-12-15 17:18:18,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2023-12-15 17:18:18,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2023-12-15 17:18:18,915 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic
[2023-12-15 17:18:18,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [592825537]
[2023-12-15 17:18:18,916 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2023-12-15 17:18:18,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2023-12-15 17:18:18,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2023-12-15 17:18:18,917 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2023-12-15 17:18:18,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process
[2023-12-15 17:18:19,459 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s)
[2023-12-15 17:18:19,459 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2023-12-15 17:18:19,463 WARN L260 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 130 conjunts are in the unsatisfiable core
[2023-12-15 17:18:19,466 INFO L285 TraceCheckSpWp]: Computing forward predicates...
[2023-12-15 17:18:19,506 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7
[2023-12-15 17:18:19,562 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18
[2023-12-15 17:18:19,629 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-15 17:18:19,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28
[2023-12-15 17:18:19,719 INFO L349 Elim1Store]: treesize reduction 48, result has 48.9 percent of original size
[2023-12-15 17:18:19,719 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 70
[2023-12-15 17:18:19,876 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:19,876 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:19,881 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:19,896 INFO L349 Elim1Store]: treesize reduction 72, result has 17.2 percent of original size
[2023-12-15 17:18:19,896 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 81 treesize of output 89
[2023-12-15 17:18:20,108 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:20,111 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:20,112 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:20,114 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:20,115 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:20,116 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:20,117 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:20,121 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:20,141 INFO L349 Elim1Store]: treesize reduction 60, result has 20.0 percent of original size
[2023-12-15 17:18:20,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 72 treesize of output 83
[2023-12-15 17:18:20,488 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:20,489 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:20,491 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:20,492 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:20,494 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:20,495 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:20,497 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:20,499 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:20,700 INFO L349 Elim1Store]: treesize reduction 159, result has 43.0 percent of original size
[2023-12-15 17:18:20,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 99 treesize of output 157
[2023-12-15 17:18:21,493 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:21,495 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:21,496 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:21,497 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:21,499 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:21,500 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:21,501 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:21,504 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:21,698 INFO L349 Elim1Store]: treesize reduction 224, result has 34.9 percent of original size
[2023-12-15 17:18:21,699 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 12 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 156 treesize of output 217
[2023-12-15 17:18:22,730 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:22,731 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:22,734 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:22,734 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:22,735 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:22,736 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:22,737 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:22,738 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:22,739 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:22,740 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:22,741 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:22,742 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:22,744 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:22,747 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:22,747 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:22,749 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:22,750 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:22,754 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:22,830 INFO L349 Elim1Store]: treesize reduction 143, result has 18.3 percent of original size
[2023-12-15 17:18:22,831 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 30 case distinctions, treesize of input 187 treesize of output 213
[2023-12-15 17:18:28,798 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,800 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,801 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,802 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,803 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,804 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,806 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,808 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,809 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,810 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,811 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,812 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,813 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,814 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,815 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,816 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,817 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,819 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,820 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,821 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,823 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,824 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,825 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,826 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,826 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,827 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,828 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,828 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,829 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,830 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,833 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,834 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,836 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,837 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,838 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,839 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,840 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,841 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,842 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,843 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,845 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,846 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,846 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,847 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,848 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,850 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,851 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,853 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,854 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,855 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,857 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,858 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,859 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,860 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,861 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,862 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,862 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,863 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,864 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,864 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,865 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,866 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,867 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,867 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,868 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,869 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,870 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,871 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,872 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,872 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,873 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,874 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,875 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,876 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,878 INFO L190 IndexEqualityManager]: detected not equals via solver
[2023-12-15 17:18:28,923 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-15 17:18:28,923 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 15 select indices, 15 select index equivalence classes, 97 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 105 case distinctions, treesize of input 191 treesize of output 155
[2023-12-15 17:18:29,274 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 13 proven. 208 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-12-15 17:18:29,274 INFO L327 TraceCheckSpWp]: Computing backward predicates...
[2023-12-15 17:18:32,430 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 104
[2023-12-15 17:18:32,437 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size
[2023-12-15 17:18:32,437 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 3588 treesize of output 3300
[2023-12-15 17:18:32,662 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 221 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2023-12-15 17:18:32,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2023-12-15 17:18:32,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276610345]
[2023-12-15 17:18:32,662 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT
[2023-12-15 17:18:32,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [592825537]
[2023-12-15 17:18:32,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [592825537] provided 0 perfect and 2 imperfect interpolant sequences
[2023-12-15 17:18:32,662 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2023-12-15 17:18:32,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46] total 91
[2023-12-15 17:18:32,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577298024]
[2023-12-15 17:18:32,663 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2023-12-15 17:18:32,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 91 states
[2023-12-15 17:18:32,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2023-12-15 17:18:32,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants.
[2023-12-15 17:18:32,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1235, Invalid=6955, Unknown=0, NotChecked=0, Total=8190
[2023-12-15 17:18:32,664 INFO L87 Difference]: Start difference. First operand 79 states and 90 transitions. Second operand has 91 states, 91 states have (on average 1.3736263736263736) internal successors, (125), 91 states have internal predecessors, (125), 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)
Received shutdown request...
[2023-12-15 17:18:56,676 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
[2023-12-15 17:18:56,676 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2023-12-15 17:18:56,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states.
[2023-12-15 17:18:56,692 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5332 ImplicationChecksByTransitivity, 26.4s TimeCoverageRelationStatistics Valid=2577, Invalid=13679, Unknown=0, NotChecked=0, Total=16256
[2023-12-15 17:18:56,692 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 264 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 328 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 1708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 328 IncrementalHoareTripleChecker+Valid, 1380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time
[2023-12-15 17:18:56,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 44 Invalid, 1708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [328 Valid, 1380 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time]
[2023-12-15 17:18:56,693 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2023-12-15 17:18:56,701 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0
[2023-12-15 17:18:56,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14
[2023-12-15 17:18:56,894 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (79states) and FLOYD_HOARE automaton (currently 45 states, 91 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-26-5-1 term,while SimplifyDDA2 was simplifying 5 xjuncts wrt. a ∧-22-4-1 context.
[2023-12-15 17:18:56,897 INFO L445 BasicCegarLoop]: Path program histogram: [9, 2, 1, 1, 1, 1]
[2023-12-15 17:18:56,899 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2023-12-15 17:18:56,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 05:18:56 BoogieIcfgContainer
[2023-12-15 17:18:56,900 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2023-12-15 17:18:56,900 INFO L158 Benchmark]: Toolchain (without parser) took 73997.13ms. Allocated memory was 442.5MB in the beginning and 543.2MB in the end (delta: 100.7MB). Free memory was 387.9MB in the beginning and 199.8MB in the end (delta: 188.1MB). Peak memory consumption was 289.8MB. Max. memory is 8.0GB.
[2023-12-15 17:18:56,900 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 255.9MB. Free memory is still 201.5MB. There was no memory consumed. Max. memory is 8.0GB.
[2023-12-15 17:18:56,901 INFO L158 Benchmark]: CACSL2BoogieTranslator took 191.08ms. Allocated memory is still 442.5MB. Free memory was 387.3MB in the beginning and 376.3MB in the end (delta: 11.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB.
[2023-12-15 17:18:56,901 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.61ms. Allocated memory is still 442.5MB. Free memory was 376.3MB in the beginning and 374.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
[2023-12-15 17:18:56,901 INFO L158 Benchmark]: Boogie Preprocessor took 30.01ms. Allocated memory is still 442.5MB. Free memory was 374.8MB in the beginning and 372.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
[2023-12-15 17:18:56,901 INFO L158 Benchmark]: RCFGBuilder took 298.29ms. Allocated memory is still 442.5MB. Free memory was 372.7MB in the beginning and 360.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB.
[2023-12-15 17:18:56,901 INFO L158 Benchmark]: TraceAbstraction took 73446.98ms. Allocated memory was 442.5MB in the beginning and 543.2MB in the end (delta: 100.7MB). Free memory was 359.6MB in the beginning and 199.8MB in the end (delta: 159.8MB). Peak memory consumption was 261.5MB. Max. memory is 8.0GB.
[2023-12-15 17:18:56,902 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.09ms. Allocated memory is still 255.9MB. Free memory is still 201.5MB. There was no memory consumed. Max. memory is 8.0GB.
* CACSL2BoogieTranslator took 191.08ms. Allocated memory is still 442.5MB. Free memory was 387.3MB in the beginning and 376.3MB in the end (delta: 11.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB.
* Boogie Procedure Inliner took 25.61ms. Allocated memory is still 442.5MB. Free memory was 376.3MB in the beginning and 374.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 30.01ms. Allocated memory is still 442.5MB. Free memory was 374.8MB in the beginning and 372.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB.
* RCFGBuilder took 298.29ms. Allocated memory is still 442.5MB. Free memory was 372.7MB in the beginning and 360.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB.
* TraceAbstraction took 73446.98ms. Allocated memory was 442.5MB in the beginning and 543.2MB in the end (delta: 100.7MB). Free memory was 359.6MB in the beginning and 199.8MB in the end (delta: 159.8MB). Peak memory consumption was 261.5MB. 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: 32]: Timeout (TraceAbstraction)
Unable to prove that a call to reach_error is unreachable (line 32). Cancelled while NwaCegarLoop was constructing difference of abstraction (79states) and FLOYD_HOARE automaton (currently 45 states, 91 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDA2 was simplifying a ∧-26-5-1 term,while SimplifyDDA2 was simplifying 5 xjuncts wrt. a ∧-22-4-1 context.
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 1 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 73.4s, OverallIterations: 15, TraceHistogramMax: 9, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.0s, AutomataDifference: 50.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1308 SdHoareTripleChecker+Valid, 11.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1308 mSDsluCounter, 525 SdHoareTripleChecker+Invalid, 11.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 408 mSDsCounter, 1036 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5143 IncrementalHoareTripleChecker+Invalid, 6179 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1036 mSolverCounterUnsat, 117 mSDtfsCounter, 5143 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1275 GetRequests, 630 SyntacticMatches, 20 SemanticMatches, 624 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26119 ImplicationChecksByTransitivity, 49.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=222occurred in iteration=11, InterpolantAutomatonStates: 419, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 14 MinimizatonAttempts, 416 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 17.3s InterpolantComputationTime, 483 NumberOfCodeBlocks, 446 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 888 ConstructedInterpolants, 2 QuantifiedInterpolants, 15047 SizeOfPredicates, 106 NumberOfNonLiveVariables, 1699 ConjunctsInSsa, 316 ConjunctsInUnsatCore, 27 InterpolantComputations, 3 PerfectInterpolantSequences, 725/1704 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