java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf -i ../../../trunk/examples/svcomp/list-ext-properties/test-0513_1_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c17473d-m [2018-02-04 18:45:56,904 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 18:45:56,906 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 18:45:56,919 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 18:45:56,919 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 18:45:56,920 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 18:45:56,921 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 18:45:56,923 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 18:45:56,924 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 18:45:56,925 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 18:45:56,926 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 18:45:56,926 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 18:45:56,927 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 18:45:56,928 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 18:45:56,929 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 18:45:56,930 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 18:45:56,932 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 18:45:56,933 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 18:45:56,934 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 18:45:56,935 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 18:45:56,937 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-04 18:45:56,937 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-04 18:45:56,937 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-04 18:45:56,938 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-04 18:45:56,939 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-04 18:45:56,940 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-04 18:45:56,940 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-04 18:45:56,940 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-04 18:45:56,941 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-04 18:45:56,941 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 18:45:56,941 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 18:45:56,941 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf [2018-02-04 18:45:56,951 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 18:45:56,951 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 18:45:56,952 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 18:45:56,952 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 18:45:56,952 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 18:45:56,952 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 18:45:56,953 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 18:45:56,953 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 18:45:56,953 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 18:45:56,953 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 18:45:56,953 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 18:45:56,953 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 18:45:56,953 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 18:45:56,954 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 18:45:56,954 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 18:45:56,954 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 18:45:56,954 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 18:45:56,954 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 18:45:56,954 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 18:45:56,955 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 18:45:56,955 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 18:45:56,955 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-04 18:45:56,955 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-04 18:45:56,955 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL [2018-02-04 18:45:56,985 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 18:45:56,997 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 18:45:57,000 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 18:45:57,001 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 18:45:57,002 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 18:45:57,002 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext-properties/test-0513_1_true-valid-memsafety.i [2018-02-04 18:45:57,142 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 18:45:57,143 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 18:45:57,144 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 18:45:57,144 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 18:45:57,150 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 18:45:57,151 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 06:45:57" (1/1) ... [2018-02-04 18:45:57,153 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11580fec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 06:45:57, skipping insertion in model container [2018-02-04 18:45:57,153 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 06:45:57" (1/1) ... [2018-02-04 18:45:57,170 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 18:45:57,201 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 18:45:57,295 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 18:45:57,310 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 18:45:57,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 06:45:57 WrapperNode [2018-02-04 18:45:57,316 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 18:45:57,316 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 18:45:57,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 18:45:57,316 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 18:45:57,326 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 06:45:57" (1/1) ... [2018-02-04 18:45:57,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 06:45:57" (1/1) ... [2018-02-04 18:45:57,335 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 06:45:57" (1/1) ... [2018-02-04 18:45:57,335 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 06:45:57" (1/1) ... [2018-02-04 18:45:57,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 06:45:57" (1/1) ... [2018-02-04 18:45:57,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 06:45:57" (1/1) ... [2018-02-04 18:45:57,343 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 06:45:57" (1/1) ... [2018-02-04 18:45:57,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 18:45:57,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 18:45:57,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 18:45:57,344 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 18:45:57,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 06:45:57" (1/1) ... No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 18:45:57,382 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 18:45:57,382 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 18:45:57,382 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 18:45:57,382 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 18:45:57,383 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 18:45:57,383 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-04 18:45:57,383 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-04 18:45:57,383 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 18:45:57,383 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 18:45:57,383 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 18:45:57,383 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-04 18:45:57,383 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-04 18:45:57,383 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-02-04 18:45:57,383 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 18:45:57,383 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 18:45:57,383 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 18:45:57,383 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 18:45:57,764 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 18:45:57,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 06:45:57 BoogieIcfgContainer [2018-02-04 18:45:57,765 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 18:45:57,766 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 18:45:57,766 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 18:45:57,768 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 18:45:57,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 06:45:57" (1/3) ... [2018-02-04 18:45:57,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@785e328 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 06:45:57, skipping insertion in model container [2018-02-04 18:45:57,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 06:45:57" (2/3) ... [2018-02-04 18:45:57,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@785e328 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 06:45:57, skipping insertion in model container [2018-02-04 18:45:57,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 06:45:57" (3/3) ... [2018-02-04 18:45:57,773 INFO L107 eAbstractionObserver]: Analyzing ICFG test-0513_1_true-valid-memsafety.i [2018-02-04 18:45:57,779 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-04 18:45:57,788 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 67 error locations. [2018-02-04 18:45:57,814 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 18:45:57,814 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 18:45:57,814 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-04 18:45:57,814 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-04 18:45:57,814 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 18:45:57,814 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 18:45:57,815 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 18:45:57,815 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 18:45:57,815 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 18:45:57,827 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states. [2018-02-04 18:45:57,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-02-04 18:45:57,834 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:45:57,835 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:45:57,835 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:45:57,837 INFO L82 PathProgramCache]: Analyzing trace with hash 1366809009, now seen corresponding path program 1 times [2018-02-04 18:45:57,838 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:45:57,838 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:45:57,866 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:45:57,867 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:45:57,867 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:45:57,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:45:57,893 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:45:57,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 18:45:57,910 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 18:45:57,910 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-04 18:45:57,911 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-02-04 18:45:57,919 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-02-04 18:45:57,919 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-02-04 18:45:57,920 INFO L87 Difference]: Start difference. First operand 155 states. Second operand 2 states. [2018-02-04 18:45:57,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:45:57,980 INFO L93 Difference]: Finished difference Result 155 states and 169 transitions. [2018-02-04 18:45:57,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-02-04 18:45:57,980 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2018-02-04 18:45:57,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:45:57,986 INFO L225 Difference]: With dead ends: 155 [2018-02-04 18:45:57,987 INFO L226 Difference]: Without dead ends: 152 [2018-02-04 18:45:57,988 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-02-04 18:45:57,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2018-02-04 18:45:58,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2018-02-04 18:45:58,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2018-02-04 18:45:58,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 166 transitions. [2018-02-04 18:45:58,014 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 166 transitions. Word has length 9 [2018-02-04 18:45:58,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:45:58,014 INFO L432 AbstractCegarLoop]: Abstraction has 152 states and 166 transitions. [2018-02-04 18:45:58,014 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-02-04 18:45:58,014 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 166 transitions. [2018-02-04 18:45:58,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-02-04 18:45:58,014 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:45:58,015 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:45:58,015 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:45:58,015 INFO L82 PathProgramCache]: Analyzing trace with hash -26359990, now seen corresponding path program 1 times [2018-02-04 18:45:58,015 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:45:58,015 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:45:58,016 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:45:58,016 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:45:58,016 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:45:58,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:45:58,024 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:45:58,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 18:45:58,049 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 18:45:58,050 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-02-04 18:45:58,050 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-04 18:45:58,051 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-04 18:45:58,051 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 18:45:58,051 INFO L87 Difference]: Start difference. First operand 152 states and 166 transitions. Second operand 3 states. [2018-02-04 18:45:58,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:45:58,183 INFO L93 Difference]: Finished difference Result 196 states and 213 transitions. [2018-02-04 18:45:58,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-04 18:45:58,183 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-02-04 18:45:58,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:45:58,186 INFO L225 Difference]: With dead ends: 196 [2018-02-04 18:45:58,186 INFO L226 Difference]: Without dead ends: 195 [2018-02-04 18:45:58,187 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 18:45:58,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2018-02-04 18:45:58,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 157. [2018-02-04 18:45:58,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2018-02-04 18:45:58,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 173 transitions. [2018-02-04 18:45:58,197 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 173 transitions. Word has length 12 [2018-02-04 18:45:58,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:45:58,197 INFO L432 AbstractCegarLoop]: Abstraction has 157 states and 173 transitions. [2018-02-04 18:45:58,197 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-04 18:45:58,197 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 173 transitions. [2018-02-04 18:45:58,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-02-04 18:45:58,198 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:45:58,198 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:45:58,198 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:45:58,198 INFO L82 PathProgramCache]: Analyzing trace with hash -817163438, now seen corresponding path program 1 times [2018-02-04 18:45:58,198 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:45:58,198 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:45:58,199 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:45:58,199 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:45:58,199 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:45:58,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:45:58,211 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:45:58,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 18:45:58,233 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 18:45:58,233 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 18:45:58,234 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-04 18:45:58,234 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-04 18:45:58,234 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 18:45:58,234 INFO L87 Difference]: Start difference. First operand 157 states and 173 transitions. Second operand 3 states. [2018-02-04 18:45:58,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:45:58,278 INFO L93 Difference]: Finished difference Result 180 states and 197 transitions. [2018-02-04 18:45:58,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-04 18:45:58,279 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-02-04 18:45:58,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:45:58,279 INFO L225 Difference]: With dead ends: 180 [2018-02-04 18:45:58,280 INFO L226 Difference]: Without dead ends: 179 [2018-02-04 18:45:58,280 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 18:45:58,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2018-02-04 18:45:58,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 169. [2018-02-04 18:45:58,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2018-02-04 18:45:58,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 195 transitions. [2018-02-04 18:45:58,288 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 195 transitions. Word has length 13 [2018-02-04 18:45:58,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:45:58,288 INFO L432 AbstractCegarLoop]: Abstraction has 169 states and 195 transitions. [2018-02-04 18:45:58,288 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-04 18:45:58,288 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 195 transitions. [2018-02-04 18:45:58,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-04 18:45:58,289 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:45:58,289 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:45:58,289 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:45:58,289 INFO L82 PathProgramCache]: Analyzing trace with hash 437426512, now seen corresponding path program 1 times [2018-02-04 18:45:58,289 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:45:58,289 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:45:58,290 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:45:58,290 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:45:58,290 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:45:58,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:45:58,300 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:45:58,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 18:45:58,325 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 18:45:58,325 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 18:45:58,325 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 18:45:58,325 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 18:45:58,326 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 18:45:58,326 INFO L87 Difference]: Start difference. First operand 169 states and 195 transitions. Second operand 4 states. [2018-02-04 18:45:58,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:45:58,501 INFO L93 Difference]: Finished difference Result 239 states and 265 transitions. [2018-02-04 18:45:58,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 18:45:58,501 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-02-04 18:45:58,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:45:58,503 INFO L225 Difference]: With dead ends: 239 [2018-02-04 18:45:58,503 INFO L226 Difference]: Without dead ends: 239 [2018-02-04 18:45:58,503 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-04 18:45:58,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2018-02-04 18:45:58,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 169. [2018-02-04 18:45:58,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2018-02-04 18:45:58,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 195 transitions. [2018-02-04 18:45:58,512 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 195 transitions. Word has length 14 [2018-02-04 18:45:58,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:45:58,512 INFO L432 AbstractCegarLoop]: Abstraction has 169 states and 195 transitions. [2018-02-04 18:45:58,512 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 18:45:58,512 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 195 transitions. [2018-02-04 18:45:58,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-04 18:45:58,513 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:45:58,513 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:45:58,513 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:45:58,513 INFO L82 PathProgramCache]: Analyzing trace with hash 437426513, now seen corresponding path program 1 times [2018-02-04 18:45:58,513 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:45:58,514 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:45:58,515 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:45:58,515 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:45:58,515 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:45:58,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:45:58,526 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:45:58,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 18:45:58,578 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 18:45:58,578 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 18:45:58,578 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 18:45:58,579 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 18:45:58,579 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 18:45:58,579 INFO L87 Difference]: Start difference. First operand 169 states and 195 transitions. Second operand 4 states. [2018-02-04 18:45:58,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:45:58,672 INFO L93 Difference]: Finished difference Result 165 states and 187 transitions. [2018-02-04 18:45:58,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-04 18:45:58,672 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-02-04 18:45:58,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:45:58,673 INFO L225 Difference]: With dead ends: 165 [2018-02-04 18:45:58,673 INFO L226 Difference]: Without dead ends: 165 [2018-02-04 18:45:58,673 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-04 18:45:58,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2018-02-04 18:45:58,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2018-02-04 18:45:58,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2018-02-04 18:45:58,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 187 transitions. [2018-02-04 18:45:58,678 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 187 transitions. Word has length 14 [2018-02-04 18:45:58,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:45:58,678 INFO L432 AbstractCegarLoop]: Abstraction has 165 states and 187 transitions. [2018-02-04 18:45:58,678 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 18:45:58,678 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 187 transitions. [2018-02-04 18:45:58,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-02-04 18:45:58,679 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:45:58,679 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:45:58,679 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:45:58,679 INFO L82 PathProgramCache]: Analyzing trace with hash 809095649, now seen corresponding path program 1 times [2018-02-04 18:45:58,680 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:45:58,680 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:45:58,681 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:45:58,681 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:45:58,681 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:45:58,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:45:58,691 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:45:58,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 18:45:58,752 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 18:45:58,752 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 18:45:58,752 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 18:45:58,752 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 18:45:58,753 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-04 18:45:58,753 INFO L87 Difference]: Start difference. First operand 165 states and 187 transitions. Second operand 5 states. [2018-02-04 18:45:58,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:45:58,782 INFO L93 Difference]: Finished difference Result 306 states and 343 transitions. [2018-02-04 18:45:58,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 18:45:58,782 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2018-02-04 18:45:58,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:45:58,783 INFO L225 Difference]: With dead ends: 306 [2018-02-04 18:45:58,784 INFO L226 Difference]: Without dead ends: 306 [2018-02-04 18:45:58,784 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-02-04 18:45:58,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2018-02-04 18:45:58,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 165. [2018-02-04 18:45:58,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2018-02-04 18:45:58,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 185 transitions. [2018-02-04 18:45:58,789 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 185 transitions. Word has length 21 [2018-02-04 18:45:58,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:45:58,789 INFO L432 AbstractCegarLoop]: Abstraction has 165 states and 185 transitions. [2018-02-04 18:45:58,790 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 18:45:58,790 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 185 transitions. [2018-02-04 18:45:58,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-02-04 18:45:58,790 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:45:58,790 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:45:58,790 INFO L371 AbstractCegarLoop]: === Iteration 7 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:45:58,791 INFO L82 PathProgramCache]: Analyzing trace with hash -836569732, now seen corresponding path program 1 times [2018-02-04 18:45:58,791 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:45:58,791 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:45:58,792 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:45:58,792 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:45:58,792 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:45:58,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:45:58,802 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:45:58,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 18:45:58,823 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 18:45:58,823 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 18:45:58,823 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 18:45:58,823 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 18:45:58,823 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 18:45:58,824 INFO L87 Difference]: Start difference. First operand 165 states and 185 transitions. Second operand 4 states. [2018-02-04 18:45:58,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:45:58,938 INFO L93 Difference]: Finished difference Result 199 states and 219 transitions. [2018-02-04 18:45:58,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 18:45:58,939 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2018-02-04 18:45:58,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:45:58,940 INFO L225 Difference]: With dead ends: 199 [2018-02-04 18:45:58,940 INFO L226 Difference]: Without dead ends: 199 [2018-02-04 18:45:58,941 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-04 18:45:58,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2018-02-04 18:45:58,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 161. [2018-02-04 18:45:58,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161 states. [2018-02-04 18:45:58,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 181 transitions. [2018-02-04 18:45:58,945 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 181 transitions. Word has length 22 [2018-02-04 18:45:58,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:45:58,945 INFO L432 AbstractCegarLoop]: Abstraction has 161 states and 181 transitions. [2018-02-04 18:45:58,945 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 18:45:58,945 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 181 transitions. [2018-02-04 18:45:58,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-02-04 18:45:58,946 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:45:58,946 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:45:58,946 INFO L371 AbstractCegarLoop]: === Iteration 8 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:45:58,946 INFO L82 PathProgramCache]: Analyzing trace with hash -836569731, now seen corresponding path program 1 times [2018-02-04 18:45:58,946 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:45:58,947 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:45:58,947 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:45:58,947 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:45:58,948 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:45:58,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:45:58,957 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:45:58,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 18:45:58,994 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 18:45:58,994 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 18:45:58,994 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 18:45:58,995 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 18:45:58,995 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 18:45:58,995 INFO L87 Difference]: Start difference. First operand 161 states and 181 transitions. Second operand 4 states. [2018-02-04 18:45:59,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:45:59,087 INFO L93 Difference]: Finished difference Result 158 states and 178 transitions. [2018-02-04 18:45:59,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-04 18:45:59,087 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2018-02-04 18:45:59,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:45:59,088 INFO L225 Difference]: With dead ends: 158 [2018-02-04 18:45:59,088 INFO L226 Difference]: Without dead ends: 158 [2018-02-04 18:45:59,088 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-04 18:45:59,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2018-02-04 18:45:59,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2018-02-04 18:45:59,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2018-02-04 18:45:59,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 178 transitions. [2018-02-04 18:45:59,090 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 178 transitions. Word has length 22 [2018-02-04 18:45:59,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:45:59,090 INFO L432 AbstractCegarLoop]: Abstraction has 158 states and 178 transitions. [2018-02-04 18:45:59,090 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 18:45:59,090 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 178 transitions. [2018-02-04 18:45:59,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-02-04 18:45:59,091 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:45:59,091 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:45:59,091 INFO L371 AbstractCegarLoop]: === Iteration 9 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:45:59,091 INFO L82 PathProgramCache]: Analyzing trace with hash 261861212, now seen corresponding path program 1 times [2018-02-04 18:45:59,091 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:45:59,091 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:45:59,092 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:45:59,092 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:45:59,092 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:45:59,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:45:59,102 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:45:59,138 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 18:45:59,138 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 18:45:59,139 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 18:45:59,139 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 18:45:59,139 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 18:45:59,139 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 18:45:59,140 INFO L87 Difference]: Start difference. First operand 158 states and 178 transitions. Second operand 5 states. [2018-02-04 18:45:59,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:45:59,245 INFO L93 Difference]: Finished difference Result 262 states and 292 transitions. [2018-02-04 18:45:59,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 18:45:59,245 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2018-02-04 18:45:59,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:45:59,247 INFO L225 Difference]: With dead ends: 262 [2018-02-04 18:45:59,247 INFO L226 Difference]: Without dead ends: 262 [2018-02-04 18:45:59,247 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-02-04 18:45:59,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2018-02-04 18:45:59,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 158. [2018-02-04 18:45:59,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2018-02-04 18:45:59,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 176 transitions. [2018-02-04 18:45:59,250 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 176 transitions. Word has length 31 [2018-02-04 18:45:59,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:45:59,250 INFO L432 AbstractCegarLoop]: Abstraction has 158 states and 176 transitions. [2018-02-04 18:45:59,250 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 18:45:59,250 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 176 transitions. [2018-02-04 18:45:59,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-02-04 18:45:59,251 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:45:59,251 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:45:59,251 INFO L371 AbstractCegarLoop]: === Iteration 10 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:45:59,251 INFO L82 PathProgramCache]: Analyzing trace with hash -472240768, now seen corresponding path program 1 times [2018-02-04 18:45:59,251 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:45:59,252 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:45:59,252 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:45:59,252 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:45:59,252 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:45:59,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:45:59,264 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:45:59,318 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 18:45:59,318 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 18:45:59,318 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 18:45:59,318 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 18:45:59,319 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 18:45:59,319 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 18:45:59,319 INFO L87 Difference]: Start difference. First operand 158 states and 176 transitions. Second operand 5 states. [2018-02-04 18:45:59,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:45:59,488 INFO L93 Difference]: Finished difference Result 253 states and 282 transitions. [2018-02-04 18:45:59,488 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 18:45:59,488 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2018-02-04 18:45:59,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:45:59,489 INFO L225 Difference]: With dead ends: 253 [2018-02-04 18:45:59,490 INFO L226 Difference]: Without dead ends: 253 [2018-02-04 18:45:59,490 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-02-04 18:45:59,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2018-02-04 18:45:59,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 200. [2018-02-04 18:45:59,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2018-02-04 18:45:59,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 257 transitions. [2018-02-04 18:45:59,494 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 257 transitions. Word has length 32 [2018-02-04 18:45:59,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:45:59,494 INFO L432 AbstractCegarLoop]: Abstraction has 200 states and 257 transitions. [2018-02-04 18:45:59,494 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 18:45:59,494 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 257 transitions. [2018-02-04 18:45:59,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-02-04 18:45:59,495 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:45:59,495 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:45:59,495 INFO L371 AbstractCegarLoop]: === Iteration 11 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:45:59,495 INFO L82 PathProgramCache]: Analyzing trace with hash -472240769, now seen corresponding path program 1 times [2018-02-04 18:45:59,496 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:45:59,496 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:45:59,496 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:45:59,496 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:45:59,497 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:45:59,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:45:59,507 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:45:59,534 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 18:45:59,534 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 18:45:59,534 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 18:45:59,534 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 18:45:59,535 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 18:45:59,535 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-04 18:45:59,535 INFO L87 Difference]: Start difference. First operand 200 states and 257 transitions. Second operand 5 states. [2018-02-04 18:45:59,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:45:59,634 INFO L93 Difference]: Finished difference Result 194 states and 244 transitions. [2018-02-04 18:45:59,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 18:45:59,634 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2018-02-04 18:45:59,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:45:59,635 INFO L225 Difference]: With dead ends: 194 [2018-02-04 18:45:59,635 INFO L226 Difference]: Without dead ends: 194 [2018-02-04 18:45:59,636 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-02-04 18:45:59,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2018-02-04 18:45:59,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 192. [2018-02-04 18:45:59,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2018-02-04 18:45:59,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 242 transitions. [2018-02-04 18:45:59,640 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 242 transitions. Word has length 32 [2018-02-04 18:45:59,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:45:59,640 INFO L432 AbstractCegarLoop]: Abstraction has 192 states and 242 transitions. [2018-02-04 18:45:59,640 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 18:45:59,640 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 242 transitions. [2018-02-04 18:45:59,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-02-04 18:45:59,641 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:45:59,641 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:45:59,641 INFO L371 AbstractCegarLoop]: === Iteration 12 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:45:59,641 INFO L82 PathProgramCache]: Analyzing trace with hash 456903790, now seen corresponding path program 1 times [2018-02-04 18:45:59,641 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:45:59,641 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:45:59,642 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:45:59,642 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:45:59,642 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:45:59,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:45:59,656 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:45:59,675 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 18:45:59,676 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 18:45:59,676 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 18:45:59,676 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 18:45:59,676 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 18:45:59,676 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-02-04 18:45:59,677 INFO L87 Difference]: Start difference. First operand 192 states and 242 transitions. Second operand 4 states. [2018-02-04 18:45:59,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:45:59,698 INFO L93 Difference]: Finished difference Result 353 states and 446 transitions. [2018-02-04 18:45:59,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-04 18:45:59,699 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2018-02-04 18:45:59,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:45:59,700 INFO L225 Difference]: With dead ends: 353 [2018-02-04 18:45:59,700 INFO L226 Difference]: Without dead ends: 353 [2018-02-04 18:45:59,701 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-02-04 18:45:59,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2018-02-04 18:45:59,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 193. [2018-02-04 18:45:59,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2018-02-04 18:45:59,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 241 transitions. [2018-02-04 18:45:59,706 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 241 transitions. Word has length 37 [2018-02-04 18:45:59,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:45:59,706 INFO L432 AbstractCegarLoop]: Abstraction has 193 states and 241 transitions. [2018-02-04 18:45:59,706 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 18:45:59,706 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 241 transitions. [2018-02-04 18:45:59,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-02-04 18:45:59,707 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:45:59,707 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:45:59,707 INFO L371 AbstractCegarLoop]: === Iteration 13 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:45:59,708 INFO L82 PathProgramCache]: Analyzing trace with hash -1168751179, now seen corresponding path program 1 times [2018-02-04 18:45:59,708 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:45:59,708 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:45:59,709 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:45:59,709 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:45:59,709 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:45:59,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:45:59,726 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:45:59,732 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 18:45:59,732 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 18:45:59,732 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 18:45:59,733 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:45:59,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:45:59,775 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 18:45:59,824 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 11 treesize of output 8 [2018-02-04 18:45:59,827 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2018-02-04 18:45:59,827 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:45:59,829 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:45:59,838 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 11 treesize of output 8 [2018-02-04 18:45:59,840 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2018-02-04 18:45:59,840 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:45:59,842 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:45:59,846 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:45:59,847 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:29, output treesize:18 [2018-02-04 18:45:59,871 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 21 treesize of output 16 [2018-02-04 18:45:59,887 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:45:59,891 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-02-04 18:45:59,892 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:45:59,896 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:45:59,904 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 21 treesize of output 16 [2018-02-04 18:45:59,908 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:45:59,909 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-02-04 18:45:59,910 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:45:59,914 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:45:59,920 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:45:59,920 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:44, output treesize:18 [2018-02-04 18:45:59,932 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 11 [2018-02-04 18:45:59,934 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-02-04 18:45:59,934 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:45:59,936 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:45:59,941 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 15 treesize of output 11 [2018-02-04 18:45:59,943 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-02-04 18:45:59,944 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:45:59,945 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:45:59,947 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:45:59,948 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:35, output treesize:10 [2018-02-04 18:45:59,955 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 18:45:59,955 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 18:45:59,955 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-02-04 18:45:59,956 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-02-04 18:45:59,956 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-02-04 18:45:59,956 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-02-04 18:45:59,956 INFO L87 Difference]: Start difference. First operand 193 states and 241 transitions. Second operand 8 states. [2018-02-04 18:46:00,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:46:00,148 INFO L93 Difference]: Finished difference Result 232 states and 284 transitions. [2018-02-04 18:46:00,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-04 18:46:00,149 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 39 [2018-02-04 18:46:00,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:46:00,150 INFO L225 Difference]: With dead ends: 232 [2018-02-04 18:46:00,150 INFO L226 Difference]: Without dead ends: 232 [2018-02-04 18:46:00,150 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2018-02-04 18:46:00,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2018-02-04 18:46:00,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 203. [2018-02-04 18:46:00,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2018-02-04 18:46:00,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 253 transitions. [2018-02-04 18:46:00,155 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 253 transitions. Word has length 39 [2018-02-04 18:46:00,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:46:00,155 INFO L432 AbstractCegarLoop]: Abstraction has 203 states and 253 transitions. [2018-02-04 18:46:00,155 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-02-04 18:46:00,155 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 253 transitions. [2018-02-04 18:46:00,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-02-04 18:46:00,156 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:46:00,156 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:46:00,156 INFO L371 AbstractCegarLoop]: === Iteration 14 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:46:00,156 INFO L82 PathProgramCache]: Analyzing trace with hash -1118408649, now seen corresponding path program 1 times [2018-02-04 18:46:00,156 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:46:00,156 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:46:00,157 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:00,157 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:00,157 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:00,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:00,172 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:46:00,189 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 18:46:00,189 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 18:46:00,189 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 18:46:00,190 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:00,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:00,222 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 18:46:00,234 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:00,235 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:00,235 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-02-04 18:46:00,235 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:00,240 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:00,240 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:18 [2018-02-04 18:46:00,280 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 13 treesize of output 10 [2018-02-04 18:46:00,282 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 18:46:00,282 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:00,283 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:00,290 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:00,291 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:34, output treesize:33 [2018-02-04 18:46:00,474 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 56 treesize of output 48 [2018-02-04 18:46:00,476 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:00,481 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 34 [2018-02-04 18:46:00,482 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 18:46:00,499 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 18:46:00,532 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 56 treesize of output 48 [2018-02-04 18:46:00,534 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:00,534 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:00,536 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 30 [2018-02-04 18:46:00,536 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:00,544 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:00,574 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-02-04 18:46:00,574 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:113, output treesize:118 [2018-02-04 18:46:00,748 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:00,749 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 15 [2018-02-04 18:46:00,749 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:00,753 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:00,753 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:15 [2018-02-04 18:46:00,781 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 18:46:00,781 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 18:46:00,781 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-02-04 18:46:00,781 INFO L409 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-02-04 18:46:00,781 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-02-04 18:46:00,782 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2018-02-04 18:46:00,782 INFO L87 Difference]: Start difference. First operand 203 states and 253 transitions. Second operand 15 states. [2018-02-04 18:46:01,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:46:01,607 INFO L93 Difference]: Finished difference Result 255 states and 312 transitions. [2018-02-04 18:46:01,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-02-04 18:46:01,607 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 41 [2018-02-04 18:46:01,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:46:01,608 INFO L225 Difference]: With dead ends: 255 [2018-02-04 18:46:01,608 INFO L226 Difference]: Without dead ends: 255 [2018-02-04 18:46:01,609 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=147, Invalid=609, Unknown=0, NotChecked=0, Total=756 [2018-02-04 18:46:01,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2018-02-04 18:46:01,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 209. [2018-02-04 18:46:01,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2018-02-04 18:46:01,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 261 transitions. [2018-02-04 18:46:01,612 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 261 transitions. Word has length 41 [2018-02-04 18:46:01,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:46:01,612 INFO L432 AbstractCegarLoop]: Abstraction has 209 states and 261 transitions. [2018-02-04 18:46:01,612 INFO L433 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-02-04 18:46:01,612 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 261 transitions. [2018-02-04 18:46:01,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-02-04 18:46:01,613 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:46:01,613 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:46:01,613 INFO L371 AbstractCegarLoop]: === Iteration 15 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:46:01,614 INFO L82 PathProgramCache]: Analyzing trace with hash -1118408648, now seen corresponding path program 1 times [2018-02-04 18:46:01,614 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:46:01,614 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:46:01,614 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:01,615 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:01,615 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:01,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:01,646 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:46:01,651 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 18:46:01,651 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 18:46:01,651 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 18:46:01,652 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:01,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:01,682 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 18:46:01,707 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2018-02-04 18:46:01,707 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:01,787 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:01,787 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-02-04 18:46:01,840 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 12 treesize of output 11 [2018-02-04 18:46:01,841 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:01,844 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:01,845 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:18, output treesize:17 [2018-02-04 18:46:01,892 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 13 treesize of output 10 [2018-02-04 18:46:01,894 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 10 treesize of output 9 [2018-02-04 18:46:01,894 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:01,903 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:01,912 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 13 treesize of output 10 [2018-02-04 18:46:01,914 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 10 treesize of output 9 [2018-02-04 18:46:01,914 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:01,915 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:01,922 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:01,922 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:43, output treesize:32 [2018-02-04 18:46:01,969 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 22 [2018-02-04 18:46:01,972 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:01,980 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 34 [2018-02-04 18:46:01,982 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 4 xjuncts. [2018-02-04 18:46:01,996 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 18:46:02,007 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 15 [2018-02-04 18:46:02,013 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 12 [2018-02-04 18:46:02,014 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-02-04 18:46:02,016 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 18:46:02,024 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-02-04 18:46:02,025 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:60, output treesize:36 [2018-02-04 18:46:02,069 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 18:46:02,069 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 18:46:02,069 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-02-04 18:46:02,069 INFO L409 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-02-04 18:46:02,069 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-02-04 18:46:02,070 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2018-02-04 18:46:02,070 INFO L87 Difference]: Start difference. First operand 209 states and 261 transitions. Second operand 13 states. [2018-02-04 18:46:02,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:46:02,866 INFO L93 Difference]: Finished difference Result 245 states and 299 transitions. [2018-02-04 18:46:02,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-02-04 18:46:02,866 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 41 [2018-02-04 18:46:02,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:46:02,867 INFO L225 Difference]: With dead ends: 245 [2018-02-04 18:46:02,867 INFO L226 Difference]: Without dead ends: 245 [2018-02-04 18:46:02,868 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 28 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2018-02-04 18:46:02,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2018-02-04 18:46:02,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 209. [2018-02-04 18:46:02,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2018-02-04 18:46:02,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 260 transitions. [2018-02-04 18:46:02,872 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 260 transitions. Word has length 41 [2018-02-04 18:46:02,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:46:02,872 INFO L432 AbstractCegarLoop]: Abstraction has 209 states and 260 transitions. [2018-02-04 18:46:02,872 INFO L433 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-02-04 18:46:02,872 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 260 transitions. [2018-02-04 18:46:02,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-02-04 18:46:02,873 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:46:02,873 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:46:02,873 INFO L371 AbstractCegarLoop]: === Iteration 16 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:46:02,873 INFO L82 PathProgramCache]: Analyzing trace with hash -310930527, now seen corresponding path program 1 times [2018-02-04 18:46:02,873 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:46:02,874 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:46:02,874 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:02,874 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:02,874 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:02,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:02,886 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:46:03,046 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 18:46:03,046 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 18:46:03,046 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-02-04 18:46:03,046 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-02-04 18:46:03,046 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-02-04 18:46:03,047 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-02-04 18:46:03,047 INFO L87 Difference]: Start difference. First operand 209 states and 260 transitions. Second operand 10 states. [2018-02-04 18:46:03,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:46:03,227 INFO L93 Difference]: Finished difference Result 236 states and 288 transitions. [2018-02-04 18:46:03,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-02-04 18:46:03,227 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 42 [2018-02-04 18:46:03,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:46:03,228 INFO L225 Difference]: With dead ends: 236 [2018-02-04 18:46:03,228 INFO L226 Difference]: Without dead ends: 236 [2018-02-04 18:46:03,228 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2018-02-04 18:46:03,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2018-02-04 18:46:03,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 209. [2018-02-04 18:46:03,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2018-02-04 18:46:03,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 259 transitions. [2018-02-04 18:46:03,232 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 259 transitions. Word has length 42 [2018-02-04 18:46:03,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:46:03,232 INFO L432 AbstractCegarLoop]: Abstraction has 209 states and 259 transitions. [2018-02-04 18:46:03,232 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-02-04 18:46:03,232 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 259 transitions. [2018-02-04 18:46:03,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-02-04 18:46:03,233 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:46:03,233 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:46:03,233 INFO L371 AbstractCegarLoop]: === Iteration 17 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:46:03,233 INFO L82 PathProgramCache]: Analyzing trace with hash -1048881672, now seen corresponding path program 1 times [2018-02-04 18:46:03,233 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:46:03,233 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:46:03,234 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:03,234 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:03,234 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:03,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:03,243 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:46:03,273 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-02-04 18:46:03,273 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 18:46:03,273 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 18:46:03,274 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 18:46:03,274 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 18:46:03,274 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 18:46:03,274 INFO L87 Difference]: Start difference. First operand 209 states and 259 transitions. Second operand 4 states. [2018-02-04 18:46:03,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:46:03,395 INFO L93 Difference]: Finished difference Result 265 states and 327 transitions. [2018-02-04 18:46:03,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 18:46:03,395 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2018-02-04 18:46:03,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:46:03,396 INFO L225 Difference]: With dead ends: 265 [2018-02-04 18:46:03,397 INFO L226 Difference]: Without dead ends: 265 [2018-02-04 18:46:03,397 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-04 18:46:03,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2018-02-04 18:46:03,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 213. [2018-02-04 18:46:03,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2018-02-04 18:46:03,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 270 transitions. [2018-02-04 18:46:03,401 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 270 transitions. Word has length 43 [2018-02-04 18:46:03,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:46:03,401 INFO L432 AbstractCegarLoop]: Abstraction has 213 states and 270 transitions. [2018-02-04 18:46:03,402 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 18:46:03,402 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 270 transitions. [2018-02-04 18:46:03,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-02-04 18:46:03,402 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:46:03,402 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:46:03,402 INFO L371 AbstractCegarLoop]: === Iteration 18 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:46:03,403 INFO L82 PathProgramCache]: Analyzing trace with hash -1048881671, now seen corresponding path program 1 times [2018-02-04 18:46:03,403 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:46:03,403 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:46:03,403 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:03,404 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:03,404 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:03,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:03,416 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:46:03,421 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 18:46:03,421 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 18:46:03,421 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 18:46:03,421 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:03,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:03,453 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 18:46:03,456 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2018-02-04 18:46:03,456 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:03,459 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:03,459 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-02-04 18:46:03,479 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:03,479 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-02-04 18:46:03,480 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:03,490 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:03,491 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:03,492 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 15 [2018-02-04 18:46:03,492 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:03,498 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:03,498 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:28, output treesize:21 [2018-02-04 18:46:03,584 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 13 treesize of output 10 [2018-02-04 18:46:03,587 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 18:46:03,587 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:03,589 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:03,601 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 13 treesize of output 10 [2018-02-04 18:46:03,603 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 10 treesize of output 9 [2018-02-04 18:46:03,603 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:03,605 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:03,614 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:03,614 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:47, output treesize:42 [2018-02-04 18:46:03,686 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 38 treesize of output 30 [2018-02-04 18:46:03,690 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:03,697 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 34 [2018-02-04 18:46:03,698 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 18:46:03,714 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 18:46:03,740 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 15 [2018-02-04 18:46:03,747 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 16 [2018-02-04 18:46:03,748 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-02-04 18:46:03,751 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 18:46:03,769 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 6 dim-0 vars, and 4 xjuncts. [2018-02-04 18:46:03,769 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:70, output treesize:158 [2018-02-04 18:46:03,949 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 18:46:03,950 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 18:46:03,950 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-02-04 18:46:03,950 INFO L409 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-02-04 18:46:03,950 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-02-04 18:46:03,950 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2018-02-04 18:46:03,951 INFO L87 Difference]: Start difference. First operand 213 states and 270 transitions. Second operand 17 states. [2018-02-04 18:46:05,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:46:05,051 INFO L93 Difference]: Finished difference Result 260 states and 323 transitions. [2018-02-04 18:46:05,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-02-04 18:46:05,051 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 43 [2018-02-04 18:46:05,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:46:05,052 INFO L225 Difference]: With dead ends: 260 [2018-02-04 18:46:05,052 INFO L226 Difference]: Without dead ends: 260 [2018-02-04 18:46:05,052 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=288, Invalid=1194, Unknown=0, NotChecked=0, Total=1482 [2018-02-04 18:46:05,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2018-02-04 18:46:05,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 221. [2018-02-04 18:46:05,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2018-02-04 18:46:05,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 280 transitions. [2018-02-04 18:46:05,056 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 280 transitions. Word has length 43 [2018-02-04 18:46:05,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:46:05,056 INFO L432 AbstractCegarLoop]: Abstraction has 221 states and 280 transitions. [2018-02-04 18:46:05,056 INFO L433 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-02-04 18:46:05,056 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 280 transitions. [2018-02-04 18:46:05,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-02-04 18:46:05,056 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:46:05,057 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:46:05,057 INFO L371 AbstractCegarLoop]: === Iteration 19 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:46:05,057 INFO L82 PathProgramCache]: Analyzing trace with hash 2097549474, now seen corresponding path program 1 times [2018-02-04 18:46:05,057 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:46:05,057 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:46:05,057 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:05,057 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:05,058 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:05,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:05,071 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:46:05,076 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 18:46:05,076 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 18:46:05,076 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 18:46:05,076 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:05,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:05,110 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 18:46:05,125 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 11 treesize of output 8 [2018-02-04 18:46:05,127 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2018-02-04 18:46:05,127 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:05,129 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:05,139 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 11 treesize of output 8 [2018-02-04 18:46:05,140 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2018-02-04 18:46:05,141 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:05,142 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:05,148 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:05,148 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:34, output treesize:23 [2018-02-04 18:46:05,160 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 27 treesize of output 22 [2018-02-04 18:46:05,163 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:05,165 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-02-04 18:46:05,165 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:05,169 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:05,180 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 27 treesize of output 22 [2018-02-04 18:46:05,184 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:05,185 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-02-04 18:46:05,186 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:05,189 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:05,194 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:05,194 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:61, output treesize:23 [2018-02-04 18:46:05,199 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 27 treesize of output 22 [2018-02-04 18:46:05,201 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:05,203 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-02-04 18:46:05,203 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:05,208 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:05,218 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 27 treesize of output 22 [2018-02-04 18:46:05,220 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:05,221 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-02-04 18:46:05,222 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:05,224 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:05,228 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:05,228 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:61, output treesize:23 [2018-02-04 18:46:05,231 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 27 treesize of output 22 [2018-02-04 18:46:05,233 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:05,235 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-02-04 18:46:05,235 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:05,238 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:05,246 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 27 treesize of output 22 [2018-02-04 18:46:05,248 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:05,249 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-02-04 18:46:05,249 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:05,251 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:05,255 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:05,255 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:61, output treesize:23 [2018-02-04 18:46:05,257 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:05,258 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:05,258 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-02-04 18:46:05,259 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:05,271 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:05,271 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:37, output treesize:35 [2018-02-04 18:46:05,299 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-02-04 18:46:05,301 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-02-04 18:46:05,301 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:05,304 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:05,317 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-02-04 18:46:05,319 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2018-02-04 18:46:05,319 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:05,323 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:05,331 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:05,331 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:60, output treesize:52 [2018-02-04 18:46:05,384 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2018-02-04 18:46:05,386 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:05,386 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:46:05,386 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 30 [2018-02-04 18:46:05,387 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:05,391 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:05,404 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2018-02-04 18:46:05,406 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:05,406 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-02-04 18:46:05,406 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:05,410 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:05,420 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:05,420 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:75, output treesize:82 [2018-02-04 18:46:05,448 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2018-02-04 18:46:05,449 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:05,464 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:05,465 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:97, output treesize:76 [2018-02-04 18:46:05,598 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:05,599 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:46:05,601 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 89 [2018-02-04 18:46:05,608 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:46:05,608 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:46:05,609 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 41 [2018-02-04 18:46:05,609 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:05,615 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:46:05,616 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 19 [2018-02-04 18:46:05,616 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:05,620 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:05,630 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 38 [2018-02-04 18:46:05,631 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:46:05,631 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 15 [2018-02-04 18:46:05,631 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:05,637 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:05,637 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:46:05,638 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 16 [2018-02-04 18:46:05,638 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:05,641 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:05,647 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:05,647 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 5 variables, input treesize:117, output treesize:7 [2018-02-04 18:46:05,677 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 18:46:05,677 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 18:46:05,677 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2018-02-04 18:46:05,677 INFO L409 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-02-04 18:46:05,677 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-02-04 18:46:05,678 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=225, Unknown=2, NotChecked=0, Total=272 [2018-02-04 18:46:05,678 INFO L87 Difference]: Start difference. First operand 221 states and 280 transitions. Second operand 17 states. [2018-02-04 18:46:07,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:46:07,052 INFO L93 Difference]: Finished difference Result 230 states and 288 transitions. [2018-02-04 18:46:07,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-02-04 18:46:07,058 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 49 [2018-02-04 18:46:07,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:46:07,059 INFO L225 Difference]: With dead ends: 230 [2018-02-04 18:46:07,059 INFO L226 Difference]: Without dead ends: 230 [2018-02-04 18:46:07,059 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=209, Invalid=909, Unknown=4, NotChecked=0, Total=1122 [2018-02-04 18:46:07,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2018-02-04 18:46:07,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 223. [2018-02-04 18:46:07,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2018-02-04 18:46:07,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 282 transitions. [2018-02-04 18:46:07,061 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 282 transitions. Word has length 49 [2018-02-04 18:46:07,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:46:07,062 INFO L432 AbstractCegarLoop]: Abstraction has 223 states and 282 transitions. [2018-02-04 18:46:07,062 INFO L433 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-02-04 18:46:07,062 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 282 transitions. [2018-02-04 18:46:07,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-02-04 18:46:07,062 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:46:07,062 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:46:07,062 INFO L371 AbstractCegarLoop]: === Iteration 20 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:46:07,062 INFO L82 PathProgramCache]: Analyzing trace with hash 599523478, now seen corresponding path program 1 times [2018-02-04 18:46:07,062 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:46:07,062 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:46:07,063 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:07,063 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:07,063 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:07,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:07,073 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:46:07,077 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 18:46:07,077 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 18:46:07,077 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 18:46:07,078 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:07,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:07,101 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 18:46:07,126 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 17 treesize of output 14 [2018-02-04 18:46:07,128 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 14 treesize of output 13 [2018-02-04 18:46:07,128 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:07,129 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:07,134 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:07,134 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:25 [2018-02-04 18:46:07,146 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:07,147 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:07,147 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 15 [2018-02-04 18:46:07,148 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:07,153 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:07,153 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:33, output treesize:27 [2018-02-04 18:46:07,179 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 30 [2018-02-04 18:46:07,181 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 1 [2018-02-04 18:46:07,181 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:07,200 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:07,209 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:07,210 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:45, output treesize:30 [2018-02-04 18:46:07,257 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 32 [2018-02-04 18:46:07,260 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 16 treesize of output 1 [2018-02-04 18:46:07,260 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:07,264 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:07,279 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 13 treesize of output 10 [2018-02-04 18:46:07,281 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 18:46:07,282 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:07,283 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:07,297 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 13 treesize of output 10 [2018-02-04 18:46:07,299 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 10 treesize of output 9 [2018-02-04 18:46:07,299 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:07,302 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:07,313 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:07,313 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 6 variables, input treesize:70, output treesize:46 [2018-02-04 18:46:07,389 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 44 treesize of output 36 [2018-02-04 18:46:07,391 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:07,396 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 40 [2018-02-04 18:46:07,397 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 18:46:07,409 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 18:46:07,453 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 15 [2018-02-04 18:46:07,459 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 12 [2018-02-04 18:46:07,460 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-02-04 18:46:07,463 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 18:46:07,482 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 6 dim-0 vars, and 4 xjuncts. [2018-02-04 18:46:07,482 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:74, output treesize:158 [2018-02-04 18:46:07,673 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 15 [2018-02-04 18:46:07,675 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2018-02-04 18:46:07,675 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:07,676 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:07,678 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:07,678 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:22, output treesize:11 [2018-02-04 18:46:07,718 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 18:46:07,719 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 18:46:07,719 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2018-02-04 18:46:07,719 INFO L409 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-02-04 18:46:07,719 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-02-04 18:46:07,719 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2018-02-04 18:46:07,719 INFO L87 Difference]: Start difference. First operand 223 states and 282 transitions. Second operand 22 states. [2018-02-04 18:46:09,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:46:09,171 INFO L93 Difference]: Finished difference Result 236 states and 295 transitions. [2018-02-04 18:46:09,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-02-04 18:46:09,171 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 50 [2018-02-04 18:46:09,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:46:09,172 INFO L225 Difference]: With dead ends: 236 [2018-02-04 18:46:09,172 INFO L226 Difference]: Without dead ends: 236 [2018-02-04 18:46:09,172 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=383, Invalid=1687, Unknown=0, NotChecked=0, Total=2070 [2018-02-04 18:46:09,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2018-02-04 18:46:09,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 223. [2018-02-04 18:46:09,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2018-02-04 18:46:09,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 281 transitions. [2018-02-04 18:46:09,175 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 281 transitions. Word has length 50 [2018-02-04 18:46:09,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:46:09,175 INFO L432 AbstractCegarLoop]: Abstraction has 223 states and 281 transitions. [2018-02-04 18:46:09,175 INFO L433 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-02-04 18:46:09,175 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 281 transitions. [2018-02-04 18:46:09,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-02-04 18:46:09,175 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:46:09,175 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:46:09,175 INFO L371 AbstractCegarLoop]: === Iteration 21 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:46:09,175 INFO L82 PathProgramCache]: Analyzing trace with hash -164689671, now seen corresponding path program 1 times [2018-02-04 18:46:09,175 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:46:09,175 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:46:09,176 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:09,176 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:09,176 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:09,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:09,184 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:46:09,187 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 18:46:09,187 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 18:46:09,187 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 18:46:09,187 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:09,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:09,205 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 18:46:09,229 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2018-02-04 18:46:09,229 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:09,232 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:09,232 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-02-04 18:46:09,248 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 17 treesize of output 14 [2018-02-04 18:46:09,249 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 14 treesize of output 13 [2018-02-04 18:46:09,249 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:09,250 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:09,254 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:09,254 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:25 [2018-02-04 18:46:09,263 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:09,263 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:09,264 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-02-04 18:46:09,264 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:09,271 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:09,271 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:39, output treesize:37 [2018-02-04 18:46:09,304 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 30 [2018-02-04 18:46:09,306 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 1 [2018-02-04 18:46:09,306 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:09,308 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:09,315 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:09,315 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:55, output treesize:40 [2018-02-04 18:46:09,363 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 32 [2018-02-04 18:46:09,365 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 16 treesize of output 1 [2018-02-04 18:46:09,366 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:09,370 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:09,394 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 13 treesize of output 10 [2018-02-04 18:46:09,396 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 10 treesize of output 9 [2018-02-04 18:46:09,396 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:09,397 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:09,407 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 13 treesize of output 10 [2018-02-04 18:46:09,408 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 18:46:09,408 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:09,409 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:09,417 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:09,417 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 6 variables, input treesize:80, output treesize:62 [2018-02-04 18:46:09,444 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2018-02-04 18:46:09,444 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:09,452 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:09,452 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:77, output treesize:56 [2018-02-04 18:46:09,487 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 44 treesize of output 36 [2018-02-04 18:46:09,491 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:09,496 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 40 [2018-02-04 18:46:09,497 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 18:46:09,511 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 18:46:09,530 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 15 [2018-02-04 18:46:09,535 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 12 [2018-02-04 18:46:09,536 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-02-04 18:46:09,538 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 18:46:09,557 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 6 dim-0 vars, and 4 xjuncts. [2018-02-04 18:46:09,558 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:74, output treesize:158 [2018-02-04 18:46:09,723 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 19 treesize of output 15 [2018-02-04 18:46:09,725 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2018-02-04 18:46:09,725 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:09,726 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:09,728 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:09,728 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:22, output treesize:11 [2018-02-04 18:46:09,783 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 18:46:09,783 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 18:46:09,784 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-02-04 18:46:09,784 INFO L409 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-02-04 18:46:09,784 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-02-04 18:46:09,784 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420 [2018-02-04 18:46:09,784 INFO L87 Difference]: Start difference. First operand 223 states and 281 transitions. Second operand 21 states. [2018-02-04 18:46:11,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:46:11,416 INFO L93 Difference]: Finished difference Result 394 states and 502 transitions. [2018-02-04 18:46:11,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-02-04 18:46:11,417 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 52 [2018-02-04 18:46:11,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:46:11,418 INFO L225 Difference]: With dead ends: 394 [2018-02-04 18:46:11,418 INFO L226 Difference]: Without dead ends: 394 [2018-02-04 18:46:11,418 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=261, Invalid=1461, Unknown=0, NotChecked=0, Total=1722 [2018-02-04 18:46:11,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2018-02-04 18:46:11,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 223. [2018-02-04 18:46:11,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2018-02-04 18:46:11,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 280 transitions. [2018-02-04 18:46:11,423 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 280 transitions. Word has length 52 [2018-02-04 18:46:11,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:46:11,423 INFO L432 AbstractCegarLoop]: Abstraction has 223 states and 280 transitions. [2018-02-04 18:46:11,423 INFO L433 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-02-04 18:46:11,423 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 280 transitions. [2018-02-04 18:46:11,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-02-04 18:46:11,424 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:46:11,424 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:46:11,424 INFO L371 AbstractCegarLoop]: === Iteration 22 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:46:11,424 INFO L82 PathProgramCache]: Analyzing trace with hash -927850364, now seen corresponding path program 1 times [2018-02-04 18:46:11,424 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:46:11,424 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:46:11,425 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:11,425 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:11,425 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:11,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:11,436 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:46:11,445 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 18:46:11,445 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 18:46:11,445 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 18:46:11,445 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:11,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:11,471 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 18:46:11,553 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 13 treesize of output 10 [2018-02-04 18:46:11,554 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 10 treesize of output 9 [2018-02-04 18:46:11,554 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:11,556 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:11,562 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:11,562 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:42, output treesize:47 [2018-02-04 18:46:11,694 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 70 treesize of output 60 [2018-02-04 18:46:11,700 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:11,701 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:11,701 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:11,702 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:11,704 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 47 [2018-02-04 18:46:11,704 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:11,716 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:11,740 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 70 treesize of output 60 [2018-02-04 18:46:11,742 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:11,743 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:11,744 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:11,748 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 51 [2018-02-04 18:46:11,749 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 18:46:11,771 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 18:46:11,811 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-02-04 18:46:11,811 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:141, output treesize:129 [2018-02-04 18:46:12,091 WARN L1033 $PredicateComparison]: unable to prove that (exists ((v_prenex_32 Int) (main_~item2~0.base Int)) (let ((.cse0 (store |c_old(#valid)| main_~item2~0.base 1))) (and (not (= 0 main_~item2~0.base)) (not (= v_prenex_32 0)) (= |c_#valid| (store (store .cse0 v_prenex_32 0) main_~item2~0.base 0)) (= 0 (select .cse0 v_prenex_32)) (= 0 (select |c_old(#valid)| main_~item2~0.base))))) is different from true [2018-02-04 18:46:12,113 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2018-02-04 18:46:12,114 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 18:46:12,114 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2018-02-04 18:46:12,114 INFO L409 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-02-04 18:46:12,114 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-02-04 18:46:12,114 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=261, Unknown=5, NotChecked=32, Total=342 [2018-02-04 18:46:12,114 INFO L87 Difference]: Start difference. First operand 223 states and 280 transitions. Second operand 19 states. [2018-02-04 18:46:13,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:46:13,043 INFO L93 Difference]: Finished difference Result 226 states and 282 transitions. [2018-02-04 18:46:13,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-02-04 18:46:13,043 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 53 [2018-02-04 18:46:13,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:46:13,044 INFO L225 Difference]: With dead ends: 226 [2018-02-04 18:46:13,044 INFO L226 Difference]: Without dead ends: 204 [2018-02-04 18:46:13,044 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=103, Invalid=651, Unknown=6, NotChecked=52, Total=812 [2018-02-04 18:46:13,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2018-02-04 18:46:13,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 203. [2018-02-04 18:46:13,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2018-02-04 18:46:13,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 259 transitions. [2018-02-04 18:46:13,047 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 259 transitions. Word has length 53 [2018-02-04 18:46:13,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:46:13,048 INFO L432 AbstractCegarLoop]: Abstraction has 203 states and 259 transitions. [2018-02-04 18:46:13,048 INFO L433 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-02-04 18:46:13,048 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 259 transitions. [2018-02-04 18:46:13,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-02-04 18:46:13,048 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:46:13,049 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:46:13,049 INFO L371 AbstractCegarLoop]: === Iteration 23 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:46:13,049 INFO L82 PathProgramCache]: Analyzing trace with hash -62214646, now seen corresponding path program 1 times [2018-02-04 18:46:13,049 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:46:13,049 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:46:13,050 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:13,050 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:13,050 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:13,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:13,060 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:46:13,088 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 24 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 18:46:13,088 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 18:46:13,088 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 18:46:13,089 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:13,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:13,105 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 18:46:13,117 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 24 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 18:46:13,117 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-02-04 18:46:13,117 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-02-04 18:46:13,117 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 18:46:13,118 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 18:46:13,118 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-02-04 18:46:13,118 INFO L87 Difference]: Start difference. First operand 203 states and 259 transitions. Second operand 4 states. [2018-02-04 18:46:13,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:46:13,140 INFO L93 Difference]: Finished difference Result 537 states and 698 transitions. [2018-02-04 18:46:13,140 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-04 18:46:13,140 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 60 [2018-02-04 18:46:13,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:46:13,141 INFO L225 Difference]: With dead ends: 537 [2018-02-04 18:46:13,141 INFO L226 Difference]: Without dead ends: 537 [2018-02-04 18:46:13,142 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-02-04 18:46:13,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2018-02-04 18:46:13,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 225. [2018-02-04 18:46:13,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2018-02-04 18:46:13,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 284 transitions. [2018-02-04 18:46:13,146 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 284 transitions. Word has length 60 [2018-02-04 18:46:13,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:46:13,146 INFO L432 AbstractCegarLoop]: Abstraction has 225 states and 284 transitions. [2018-02-04 18:46:13,146 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 18:46:13,147 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 284 transitions. [2018-02-04 18:46:13,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-02-04 18:46:13,147 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:46:13,147 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:46:13,147 INFO L371 AbstractCegarLoop]: === Iteration 24 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:46:13,148 INFO L82 PathProgramCache]: Analyzing trace with hash -1528276162, now seen corresponding path program 1 times [2018-02-04 18:46:13,148 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:46:13,148 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:46:13,148 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:13,148 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:13,149 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:13,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:13,162 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:46:13,166 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 18:46:13,166 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 18:46:13,166 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 18:46:13,167 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:13,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:13,193 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 18:46:13,208 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2018-02-04 18:46:13,208 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:13,211 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:13,212 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-02-04 18:46:13,236 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 11 treesize of output 8 [2018-02-04 18:46:13,238 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2018-02-04 18:46:13,238 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:13,240 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:13,245 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:13,245 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:23, output treesize:19 [2018-02-04 18:46:13,269 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 31 treesize of output 40 [2018-02-04 18:46:13,273 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:13,274 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 32 [2018-02-04 18:46:13,274 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:13,284 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 24 treesize of output 23 [2018-02-04 18:46:13,284 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:13,288 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:13,292 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:13,292 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:37, output treesize:13 [2018-02-04 18:46:13,299 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 13 [2018-02-04 18:46:13,300 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 5 [2018-02-04 18:46:13,300 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:13,301 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:13,303 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:13,303 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:20, output treesize:5 [2018-02-04 18:46:13,310 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 18:46:13,310 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 18:46:13,311 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2018-02-04 18:46:13,311 INFO L409 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-02-04 18:46:13,311 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-02-04 18:46:13,311 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2018-02-04 18:46:13,311 INFO L87 Difference]: Start difference. First operand 225 states and 284 transitions. Second operand 11 states. [2018-02-04 18:46:13,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:46:13,645 INFO L93 Difference]: Finished difference Result 251 states and 288 transitions. [2018-02-04 18:46:13,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-02-04 18:46:13,645 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 61 [2018-02-04 18:46:13,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:46:13,646 INFO L225 Difference]: With dead ends: 251 [2018-02-04 18:46:13,646 INFO L226 Difference]: Without dead ends: 251 [2018-02-04 18:46:13,647 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=156, Invalid=396, Unknown=0, NotChecked=0, Total=552 [2018-02-04 18:46:13,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2018-02-04 18:46:13,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 225. [2018-02-04 18:46:13,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2018-02-04 18:46:13,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 283 transitions. [2018-02-04 18:46:13,649 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 283 transitions. Word has length 61 [2018-02-04 18:46:13,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:46:13,649 INFO L432 AbstractCegarLoop]: Abstraction has 225 states and 283 transitions. [2018-02-04 18:46:13,649 INFO L433 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-02-04 18:46:13,649 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 283 transitions. [2018-02-04 18:46:13,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-02-04 18:46:13,649 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:46:13,649 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:46:13,649 INFO L371 AbstractCegarLoop]: === Iteration 25 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:46:13,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1528276161, now seen corresponding path program 1 times [2018-02-04 18:46:13,650 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:46:13,650 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:46:13,650 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:13,650 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:13,650 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:13,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:13,658 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:46:13,662 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 18:46:13,662 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 18:46:13,675 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 18:46:13,675 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:13,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:13,705 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 18:46:13,720 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2018-02-04 18:46:13,720 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:13,724 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:13,725 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-02-04 18:46:13,748 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 11 treesize of output 8 [2018-02-04 18:46:13,750 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2018-02-04 18:46:13,750 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:13,752 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:13,762 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 11 treesize of output 8 [2018-02-04 18:46:13,766 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2018-02-04 18:46:13,767 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:13,768 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:13,775 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:13,776 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:34, output treesize:26 [2018-02-04 18:46:13,805 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 53 [2018-02-04 18:46:13,808 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:13,810 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 47 [2018-02-04 18:46:13,810 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:13,825 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 41 treesize of output 40 [2018-02-04 18:46:13,825 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:13,832 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:13,846 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 27 treesize of output 43 [2018-02-04 18:46:13,855 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 28 treesize of output 27 [2018-02-04 18:46:13,855 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:13,868 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:13,873 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:13,873 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 4 variables, input treesize:58, output treesize:20 [2018-02-04 18:46:13,928 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 25 treesize of output 19 [2018-02-04 18:46:13,931 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 10 [2018-02-04 18:46:13,932 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:13,935 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:13,942 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 15 treesize of output 11 [2018-02-04 18:46:13,943 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-02-04 18:46:13,943 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:13,945 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:13,949 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:13,949 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:39, output treesize:9 [2018-02-04 18:46:13,963 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 18:46:13,963 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 18:46:13,963 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-02-04 18:46:13,963 INFO L409 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-02-04 18:46:13,963 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-02-04 18:46:13,964 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-02-04 18:46:13,964 INFO L87 Difference]: Start difference. First operand 225 states and 283 transitions. Second operand 12 states. [2018-02-04 18:46:14,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:46:14,286 INFO L93 Difference]: Finished difference Result 269 states and 308 transitions. [2018-02-04 18:46:14,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-02-04 18:46:14,286 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 61 [2018-02-04 18:46:14,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:46:14,287 INFO L225 Difference]: With dead ends: 269 [2018-02-04 18:46:14,287 INFO L226 Difference]: Without dead ends: 269 [2018-02-04 18:46:14,287 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 51 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=133, Invalid=329, Unknown=0, NotChecked=0, Total=462 [2018-02-04 18:46:14,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2018-02-04 18:46:14,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 225. [2018-02-04 18:46:14,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2018-02-04 18:46:14,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 282 transitions. [2018-02-04 18:46:14,289 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 282 transitions. Word has length 61 [2018-02-04 18:46:14,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:46:14,289 INFO L432 AbstractCegarLoop]: Abstraction has 225 states and 282 transitions. [2018-02-04 18:46:14,289 INFO L433 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-02-04 18:46:14,289 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 282 transitions. [2018-02-04 18:46:14,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-02-04 18:46:14,290 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:46:14,290 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:46:14,290 INFO L371 AbstractCegarLoop]: === Iteration 26 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:46:14,290 INFO L82 PathProgramCache]: Analyzing trace with hash 1270433664, now seen corresponding path program 1 times [2018-02-04 18:46:14,290 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:46:14,290 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:46:14,291 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:14,291 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:14,291 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:14,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:14,304 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:46:14,314 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 18:46:14,315 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 18:46:14,315 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 18:46:14,315 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:14,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:14,361 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 18:46:14,391 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 12 treesize of output 11 [2018-02-04 18:46:14,392 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:14,394 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:14,394 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:11 [2018-02-04 18:46:14,398 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:14,398 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:14,399 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 12 [2018-02-04 18:46:14,399 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:14,400 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:14,400 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:4 [2018-02-04 18:46:14,406 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 11 treesize of output 8 [2018-02-04 18:46:14,407 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-02-04 18:46:14,407 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:14,408 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:14,409 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:14,409 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:16, output treesize:12 [2018-02-04 18:46:14,417 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 30 treesize of output 26 [2018-02-04 18:46:14,418 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 14 treesize of output 13 [2018-02-04 18:46:14,418 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:14,420 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:14,422 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:14,423 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:30, output treesize:8 [2018-02-04 18:46:14,427 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 16 treesize of output 12 [2018-02-04 18:46:14,428 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-02-04 18:46:14,428 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:14,429 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:14,429 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:14,429 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:4 [2018-02-04 18:46:14,434 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 20 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 18:46:14,435 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 18:46:14,435 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2018-02-04 18:46:14,435 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-02-04 18:46:14,435 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-02-04 18:46:14,435 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-02-04 18:46:14,435 INFO L87 Difference]: Start difference. First operand 225 states and 282 transitions. Second operand 9 states. [2018-02-04 18:46:14,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:46:14,647 INFO L93 Difference]: Finished difference Result 259 states and 296 transitions. [2018-02-04 18:46:14,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-02-04 18:46:14,647 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 63 [2018-02-04 18:46:14,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:46:14,648 INFO L225 Difference]: With dead ends: 259 [2018-02-04 18:46:14,648 INFO L226 Difference]: Without dead ends: 259 [2018-02-04 18:46:14,648 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2018-02-04 18:46:14,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2018-02-04 18:46:14,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 222. [2018-02-04 18:46:14,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2018-02-04 18:46:14,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 278 transitions. [2018-02-04 18:46:14,650 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 278 transitions. Word has length 63 [2018-02-04 18:46:14,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:46:14,650 INFO L432 AbstractCegarLoop]: Abstraction has 222 states and 278 transitions. [2018-02-04 18:46:14,650 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-02-04 18:46:14,650 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 278 transitions. [2018-02-04 18:46:14,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-02-04 18:46:14,651 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:46:14,651 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:46:14,651 INFO L371 AbstractCegarLoop]: === Iteration 27 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:46:14,651 INFO L82 PathProgramCache]: Analyzing trace with hash -153938688, now seen corresponding path program 1 times [2018-02-04 18:46:14,651 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:46:14,651 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:46:14,651 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:14,651 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:14,652 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:14,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:14,660 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:46:14,703 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-02-04 18:46:14,703 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 18:46:14,703 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 18:46:14,703 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 18:46:14,703 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 18:46:14,703 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-04 18:46:14,704 INFO L87 Difference]: Start difference. First operand 222 states and 278 transitions. Second operand 6 states. [2018-02-04 18:46:14,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:46:14,825 INFO L93 Difference]: Finished difference Result 221 states and 276 transitions. [2018-02-04 18:46:14,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-04 18:46:14,825 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2018-02-04 18:46:14,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:46:14,825 INFO L225 Difference]: With dead ends: 221 [2018-02-04 18:46:14,826 INFO L226 Difference]: Without dead ends: 221 [2018-02-04 18:46:14,826 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-02-04 18:46:14,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2018-02-04 18:46:14,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 221. [2018-02-04 18:46:14,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2018-02-04 18:46:14,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 276 transitions. [2018-02-04 18:46:14,827 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 276 transitions. Word has length 65 [2018-02-04 18:46:14,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:46:14,828 INFO L432 AbstractCegarLoop]: Abstraction has 221 states and 276 transitions. [2018-02-04 18:46:14,828 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 18:46:14,828 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 276 transitions. [2018-02-04 18:46:14,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2018-02-04 18:46:14,828 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:46:14,828 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:46:14,828 INFO L371 AbstractCegarLoop]: === Iteration 28 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:46:14,829 INFO L82 PathProgramCache]: Analyzing trace with hash -153938687, now seen corresponding path program 1 times [2018-02-04 18:46:14,829 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:46:14,829 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:46:14,829 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:14,829 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:14,829 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:14,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:14,838 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:46:14,845 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 18:46:14,845 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 18:46:14,845 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 18:46:14,846 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:14,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:14,865 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 18:46:14,873 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2018-02-04 18:46:14,873 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:14,876 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:14,876 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-02-04 18:46:14,898 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 11 treesize of output 8 [2018-02-04 18:46:14,900 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2018-02-04 18:46:14,900 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:14,901 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:14,940 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 11 treesize of output 8 [2018-02-04 18:46:14,942 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2018-02-04 18:46:14,942 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:14,944 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:14,952 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:14,952 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:37, output treesize:29 [2018-02-04 18:46:14,986 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 75 [2018-02-04 18:46:14,990 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:14,992 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 57 treesize of output 97 [2018-02-04 18:46:14,992 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:15,020 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 58 treesize of output 57 [2018-02-04 18:46:15,021 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:15,029 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:15,047 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 59 [2018-02-04 18:46:15,058 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 53 treesize of output 52 [2018-02-04 18:46:15,058 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:15,084 INFO L267 ElimStorePlain]: Start of recursive call 5: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:15,093 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:15,093 INFO L202 ElimStorePlain]: Needed 6 recursive calls to eliminate 4 variables, input treesize:77, output treesize:27 [2018-02-04 18:46:15,138 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 25 treesize of output 19 [2018-02-04 18:46:15,139 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 10 [2018-02-04 18:46:15,139 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:15,141 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:15,147 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 22 treesize of output 16 [2018-02-04 18:46:15,148 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 7 [2018-02-04 18:46:15,148 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:15,150 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:15,154 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:15,154 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:46, output treesize:12 [2018-02-04 18:46:15,176 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 18:46:15,176 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 18:46:15,176 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2018-02-04 18:46:15,176 INFO L409 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-02-04 18:46:15,176 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-02-04 18:46:15,176 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2018-02-04 18:46:15,176 INFO L87 Difference]: Start difference. First operand 221 states and 276 transitions. Second operand 14 states. [2018-02-04 18:46:15,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:46:15,594 INFO L93 Difference]: Finished difference Result 284 states and 323 transitions. [2018-02-04 18:46:15,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-02-04 18:46:15,594 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 65 [2018-02-04 18:46:15,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:46:15,595 INFO L225 Difference]: With dead ends: 284 [2018-02-04 18:46:15,595 INFO L226 Difference]: Without dead ends: 284 [2018-02-04 18:46:15,595 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=190, Invalid=512, Unknown=0, NotChecked=0, Total=702 [2018-02-04 18:46:15,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2018-02-04 18:46:15,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 221. [2018-02-04 18:46:15,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2018-02-04 18:46:15,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 274 transitions. [2018-02-04 18:46:15,597 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 274 transitions. Word has length 65 [2018-02-04 18:46:15,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:46:15,598 INFO L432 AbstractCegarLoop]: Abstraction has 221 states and 274 transitions. [2018-02-04 18:46:15,598 INFO L433 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-02-04 18:46:15,598 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 274 transitions. [2018-02-04 18:46:15,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-02-04 18:46:15,598 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:46:15,598 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:46:15,598 INFO L371 AbstractCegarLoop]: === Iteration 29 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:46:15,598 INFO L82 PathProgramCache]: Analyzing trace with hash -75951232, now seen corresponding path program 1 times [2018-02-04 18:46:15,598 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:46:15,599 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:46:15,599 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:15,599 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:15,599 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:15,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:15,622 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:46:15,627 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 18:46:15,627 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 18:46:15,627 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 18:46:15,628 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:15,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:15,680 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 18:46:15,703 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:15,704 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:15,704 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-02-04 18:46:15,704 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:15,709 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:15,710 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:21 [2018-02-04 18:46:15,738 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 13 treesize of output 10 [2018-02-04 18:46:15,739 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 18:46:15,739 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:15,740 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:15,746 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:15,746 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:34, output treesize:33 [2018-02-04 18:46:15,767 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:15,767 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:15,768 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:15,768 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 52 [2018-02-04 18:46:15,768 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:15,776 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:15,776 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:41, output treesize:49 [2018-02-04 18:46:15,806 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 44 [2018-02-04 18:46:15,807 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2018-02-04 18:46:15,807 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:15,812 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:15,820 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:15,820 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:60, output treesize:56 [2018-02-04 18:46:15,841 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 57 [2018-02-04 18:46:15,842 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:15,843 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-02-04 18:46:15,844 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:15,849 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:15,857 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:15,857 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:75, output treesize:56 [2018-02-04 18:46:15,862 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 57 [2018-02-04 18:46:15,864 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:15,865 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-02-04 18:46:15,865 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:15,871 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:15,879 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:15,879 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:75, output treesize:56 [2018-02-04 18:46:15,900 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:15,901 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:15,901 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:15,902 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:15,902 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 75 [2018-02-04 18:46:15,903 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:15,918 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:15,918 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:70, output treesize:82 [2018-02-04 18:46:16,006 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 69 [2018-02-04 18:46:16,009 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2018-02-04 18:46:16,009 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:16,021 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:16,038 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:16,038 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:96, output treesize:82 [2018-02-04 18:46:16,042 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 53 [2018-02-04 18:46:16,044 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:16,044 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 55 [2018-02-04 18:46:16,044 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:16,052 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:16,065 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:16,065 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:93, output treesize:89 [2018-02-04 18:46:16,109 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:16,110 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 106 [2018-02-04 18:46:16,112 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 24 [2018-02-04 18:46:16,112 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:16,122 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:16,134 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:16,134 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:114, output treesize:127 [2018-02-04 18:46:16,271 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:16,272 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:16,273 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 88 [2018-02-04 18:46:16,278 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 36 [2018-02-04 18:46:16,279 INFO L267 ElimStorePlain]: Start of recursive call 3: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-02-04 18:46:16,301 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 72 treesize of output 60 [2018-02-04 18:46:16,302 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 3 xjuncts. [2018-02-04 18:46:16,303 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 40 [2018-02-04 18:46:16,303 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:16,329 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-02-04 18:46:16,330 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:16,347 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-02-04 18:46:16,369 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 7 treesize of output 5 [2018-02-04 18:46:16,370 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-02-04 18:46:16,370 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:16,371 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:16,390 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2018-02-04 18:46:16,390 INFO L202 ElimStorePlain]: Needed 8 recursive calls to eliminate 4 variables, input treesize:137, output treesize:91 [2018-02-04 18:46:16,479 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:16,480 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 55 [2018-02-04 18:46:16,480 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:16,502 INFO L267 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 1 dim-1 vars, End of recursive call: 5 dim-0 vars, and 2 xjuncts. [2018-02-04 18:46:16,502 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 8 variables, input treesize:151, output treesize:83 [2018-02-04 18:46:16,572 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 18:46:16,572 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 18:46:16,572 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2018-02-04 18:46:16,572 INFO L409 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-02-04 18:46:16,572 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-02-04 18:46:16,572 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=514, Unknown=0, NotChecked=0, Total=600 [2018-02-04 18:46:16,572 INFO L87 Difference]: Start difference. First operand 221 states and 274 transitions. Second operand 25 states. [2018-02-04 18:46:17,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:46:17,705 INFO L93 Difference]: Finished difference Result 274 states and 331 transitions. [2018-02-04 18:46:17,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-02-04 18:46:17,706 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 72 [2018-02-04 18:46:17,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:46:17,706 INFO L225 Difference]: With dead ends: 274 [2018-02-04 18:46:17,706 INFO L226 Difference]: Without dead ends: 274 [2018-02-04 18:46:17,707 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 499 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=257, Invalid=1549, Unknown=0, NotChecked=0, Total=1806 [2018-02-04 18:46:17,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2018-02-04 18:46:17,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 218. [2018-02-04 18:46:17,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2018-02-04 18:46:17,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 268 transitions. [2018-02-04 18:46:17,709 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 268 transitions. Word has length 72 [2018-02-04 18:46:17,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:46:17,710 INFO L432 AbstractCegarLoop]: Abstraction has 218 states and 268 transitions. [2018-02-04 18:46:17,710 INFO L433 AbstractCegarLoop]: Interpolant automaton has 25 states. [2018-02-04 18:46:17,710 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 268 transitions. [2018-02-04 18:46:17,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-02-04 18:46:17,710 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:46:17,710 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:46:17,710 INFO L371 AbstractCegarLoop]: === Iteration 30 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:46:17,710 INFO L82 PathProgramCache]: Analyzing trace with hash -75951231, now seen corresponding path program 1 times [2018-02-04 18:46:17,711 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:46:17,711 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:46:17,711 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:17,711 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:17,711 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:17,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:17,726 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:46:17,730 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 18:46:17,730 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 18:46:17,730 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 18:46:17,730 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:17,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:17,763 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 18:46:17,782 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2018-02-04 18:46:17,782 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:17,789 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2018-02-04 18:46:17,789 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:17,802 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:17,802 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:19, output treesize:17 [2018-02-04 18:46:17,825 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:17,826 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-02-04 18:46:17,826 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:17,836 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:17,836 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:17,837 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-02-04 18:46:17,837 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:17,847 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:17,847 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:37, output treesize:34 [2018-02-04 18:46:17,889 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 13 treesize of output 10 [2018-02-04 18:46:17,891 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 10 treesize of output 9 [2018-02-04 18:46:17,891 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:17,892 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:17,904 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 13 treesize of output 10 [2018-02-04 18:46:17,906 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 18:46:17,906 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:17,908 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:17,917 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:17,917 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:57, output treesize:58 [2018-02-04 18:46:17,948 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:17,948 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:17,949 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 46 [2018-02-04 18:46:17,949 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:17,964 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:17,964 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:17,965 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:17,965 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 25 [2018-02-04 18:46:17,966 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:17,975 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:17,975 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:69, output treesize:61 [2018-02-04 18:46:18,015 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 22 [2018-02-04 18:46:18,016 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2018-02-04 18:46:18,016 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:18,020 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:18,040 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 44 [2018-02-04 18:46:18,041 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2018-02-04 18:46:18,041 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:18,046 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:18,057 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:18,058 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:83, output treesize:75 [2018-02-04 18:46:18,081 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 35 [2018-02-04 18:46:18,082 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:18,083 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-02-04 18:46:18,084 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:18,087 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:18,103 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 57 [2018-02-04 18:46:18,107 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:18,109 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-02-04 18:46:18,110 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:18,115 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:18,125 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:18,126 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:113, output treesize:75 [2018-02-04 18:46:18,133 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 57 [2018-02-04 18:46:18,135 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:18,136 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-02-04 18:46:18,136 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:18,142 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:18,158 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 35 [2018-02-04 18:46:18,160 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:18,160 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-02-04 18:46:18,161 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:18,164 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:18,173 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:18,173 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:113, output treesize:75 [2018-02-04 18:46:18,178 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 51 [2018-02-04 18:46:18,178 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:18,193 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:18,193 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:81, output treesize:80 [2018-02-04 18:46:18,223 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 28 treesize of output 59 [2018-02-04 18:46:18,233 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 41 [2018-02-04 18:46:18,233 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-02-04 18:46:18,288 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 25 treesize of output 24 [2018-02-04 18:46:18,289 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:18,316 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 34 [2018-02-04 18:46:18,316 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-02-04 18:46:18,349 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-02-04 18:46:18,392 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 50 treesize of output 77 [2018-02-04 18:46:18,402 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 56 treesize of output 64 [2018-02-04 18:46:18,403 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-02-04 18:46:18,481 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 44 treesize of output 46 [2018-02-04 18:46:18,482 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 18:46:18,595 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 47 treesize of output 46 [2018-02-04 18:46:18,595 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:18,628 INFO L267 ElimStorePlain]: Start of recursive call 6: 4 dim-1 vars, End of recursive call: 1 dim-0 vars, and 4 xjuncts. [2018-02-04 18:46:18,682 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 6 dim-0 vars, and 12 xjuncts. [2018-02-04 18:46:18,682 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 4 variables, input treesize:100, output treesize:918 [2018-02-04 18:46:18,822 WARN L146 SmtUtils]: Spent 113ms on a formula simplification. DAG size of input: 103 DAG size of output 56 [2018-02-04 18:46:18,828 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:18,828 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 84 [2018-02-04 18:46:18,830 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 18 treesize of output 16 [2018-02-04 18:46:18,830 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:18,845 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:18,940 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 91 [2018-02-04 18:46:18,949 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:18,950 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 45 [2018-02-04 18:46:18,950 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:18,968 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:19,056 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 91 [2018-02-04 18:46:19,058 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:19,059 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-02-04 18:46:19,059 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:19,073 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:19,142 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:19,144 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 71 [2018-02-04 18:46:19,146 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2018-02-04 18:46:19,146 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:19,158 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:19,239 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 89 treesize of output 84 [2018-02-04 18:46:19,240 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:19,241 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:46:19,241 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 32 [2018-02-04 18:46:19,241 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:19,255 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:19,310 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 91 treesize of output 82 [2018-02-04 18:46:19,311 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:19,311 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 45 [2018-02-04 18:46:19,312 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:19,323 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:19,369 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 6 dim-2 vars, End of recursive call: 1 dim-0 vars, and 3 xjuncts. [2018-02-04 18:46:19,369 INFO L202 ElimStorePlain]: Needed 13 recursive calls to eliminate 7 variables, input treesize:268, output treesize:246 [2018-02-04 18:46:19,445 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:19,451 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 96 [2018-02-04 18:46:19,453 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:19,453 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 64 [2018-02-04 18:46:19,453 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:19,468 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:19,581 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 129 treesize of output 162 [2018-02-04 18:46:19,586 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:19,586 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 135 treesize of output 150 [2018-02-04 18:46:19,587 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:19,713 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 122 treesize of output 121 [2018-02-04 18:46:19,713 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:19,772 INFO L267 ElimStorePlain]: Start of recursive call 4: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:19,874 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 121 treesize of output 139 [2018-02-04 18:46:19,878 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 129 [2018-02-04 18:46:19,878 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:20,009 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:20,015 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 111 treesize of output 136 [2018-02-04 18:46:20,017 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:20,060 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:20,095 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-02-04 18:46:20,294 INFO L267 ElimStorePlain]: Start of recursive call 7: 4 dim-1 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-02-04 18:46:20,419 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:20,420 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:20,421 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:20,422 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 105 [2018-02-04 18:46:20,425 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:20,426 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:20,431 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 116 [2018-02-04 18:46:20,432 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 18:46:20,454 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:20,562 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:20,563 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 137 treesize of output 152 [2018-02-04 18:46:20,564 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 34 [2018-02-04 18:46:20,565 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:20,578 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:20,679 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:20,681 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 122 [2018-02-04 18:46:20,683 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 18 treesize of output 17 [2018-02-04 18:46:20,683 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:20,702 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:20,803 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 6 dim-2 vars, End of recursive call: 4 dim-0 vars, and 5 xjuncts. [2018-02-04 18:46:20,803 INFO L202 ElimStorePlain]: Needed 17 recursive calls to eliminate 9 variables, input treesize:374, output treesize:678 [2018-02-04 18:46:20,973 WARN L146 SmtUtils]: Spent 131ms on a formula simplification. DAG size of input: 138 DAG size of output 111 [2018-02-04 18:46:21,362 WARN L146 SmtUtils]: Spent 217ms on a formula simplification. DAG size of input: 115 DAG size of output 81 [2018-02-04 18:46:21,374 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 184 treesize of output 166 [2018-02-04 18:46:21,378 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:21,379 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 140 treesize of output 113 [2018-02-04 18:46:21,379 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:21,458 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:21,459 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:21,461 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 100 [2018-02-04 18:46:21,462 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:21,534 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:21,535 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 86 [2018-02-04 18:46:21,536 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:21,610 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:21,611 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 104 [2018-02-04 18:46:21,612 INFO L267 ElimStorePlain]: Start of recursive call 6: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:21,676 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:21,677 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 149 treesize of output 130 [2018-02-04 18:46:21,677 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:21,738 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 124 treesize of output 84 [2018-02-04 18:46:21,738 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:21,814 INFO L267 ElimStorePlain]: Start of recursive call 2: 6 dim-1 vars, End of recursive call: 7 dim-0 vars, and 4 xjuncts. [2018-02-04 18:46:21,912 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:21,913 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 145 [2018-02-04 18:46:21,915 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:21,916 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:21,917 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 80 [2018-02-04 18:46:21,917 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:21,929 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:22,037 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:22,038 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:22,038 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 124 [2018-02-04 18:46:22,043 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 23 [2018-02-04 18:46:22,043 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:22,056 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 42 [2018-02-04 18:46:22,056 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:22,067 INFO L267 ElimStorePlain]: Start of recursive call 11: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:22,159 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-2 vars, End of recursive call: 10 dim-0 vars, and 6 xjuncts. [2018-02-04 18:46:22,159 INFO L202 ElimStorePlain]: Needed 13 recursive calls to eliminate 4 variables, input treesize:472, output treesize:477 [2018-02-04 18:46:22,345 WARN L146 SmtUtils]: Spent 142ms on a formula simplification. DAG size of input: 135 DAG size of output 100 [2018-02-04 18:46:22,481 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:22,482 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:22,486 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 84 treesize of output 84 [2018-02-04 18:46:22,489 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 71 [2018-02-04 18:46:22,489 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:22,524 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 62 [2018-02-04 18:46:22,525 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:22,553 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 49 [2018-02-04 18:46:22,553 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:22,579 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:22,579 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 67 [2018-02-04 18:46:22,580 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:22,603 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 38 [2018-02-04 18:46:22,603 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:22,616 INFO L267 ElimStorePlain]: Start of recursive call 2: 5 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:22,664 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 74 [2018-02-04 18:46:22,666 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 56 [2018-02-04 18:46:22,666 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:22,694 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 53 [2018-02-04 18:46:22,695 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:22,720 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:22,720 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 47 [2018-02-04 18:46:22,721 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:22,745 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 45 [2018-02-04 18:46:22,745 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:22,763 INFO L267 ElimStorePlain]: Start of recursive call 8: 4 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 18:46:22,815 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 59 [2018-02-04 18:46:22,816 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 14 [2018-02-04 18:46:22,816 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:22,823 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 1 [2018-02-04 18:46:22,824 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:22,830 INFO L267 ElimStorePlain]: Start of recursive call 13: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:22,871 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:22,871 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:22,872 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 61 [2018-02-04 18:46:22,876 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 10 treesize of output 15 [2018-02-04 18:46:22,876 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:22,886 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:22,887 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 7 [2018-02-04 18:46:22,887 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:22,892 INFO L267 ElimStorePlain]: Start of recursive call 16: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:22,920 INFO L267 ElimStorePlain]: Start of recursive call 1: 11 dim-0 vars, 4 dim-2 vars, End of recursive call: 9 dim-0 vars, and 4 xjuncts. [2018-02-04 18:46:22,920 INFO L202 ElimStorePlain]: Needed 18 recursive calls to eliminate 15 variables, input treesize:303, output treesize:134 [2018-02-04 18:46:23,079 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 18:46:23,080 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 18:46:23,080 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-02-04 18:46:23,080 INFO L409 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-02-04 18:46:23,080 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-02-04 18:46:23,080 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2018-02-04 18:46:23,080 INFO L87 Difference]: Start difference. First operand 218 states and 268 transitions. Second operand 24 states. [2018-02-04 18:46:23,953 WARN L146 SmtUtils]: Spent 174ms on a formula simplification. DAG size of input: 151 DAG size of output 125 [2018-02-04 18:46:24,353 WARN L146 SmtUtils]: Spent 262ms on a formula simplification. DAG size of input: 157 DAG size of output 120 [2018-02-04 18:46:24,989 WARN L146 SmtUtils]: Spent 602ms on a formula simplification. DAG size of input: 157 DAG size of output 120 [2018-02-04 18:46:26,268 WARN L146 SmtUtils]: Spent 1221ms on a formula simplification. DAG size of input: 182 DAG size of output 126 [2018-02-04 18:46:27,326 WARN L146 SmtUtils]: Spent 1016ms on a formula simplification. DAG size of input: 182 DAG size of output 126 [2018-02-04 18:46:27,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:46:27,993 INFO L93 Difference]: Finished difference Result 329 states and 389 transitions. [2018-02-04 18:46:27,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-02-04 18:46:27,994 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 72 [2018-02-04 18:46:27,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:46:27,994 INFO L225 Difference]: With dead ends: 329 [2018-02-04 18:46:27,994 INFO L226 Difference]: Without dead ends: 329 [2018-02-04 18:46:27,995 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 46 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 336 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=175, Invalid=1307, Unknown=0, NotChecked=0, Total=1482 [2018-02-04 18:46:27,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2018-02-04 18:46:27,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 286. [2018-02-04 18:46:27,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2018-02-04 18:46:27,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 352 transitions. [2018-02-04 18:46:27,997 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 352 transitions. Word has length 72 [2018-02-04 18:46:27,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:46:27,997 INFO L432 AbstractCegarLoop]: Abstraction has 286 states and 352 transitions. [2018-02-04 18:46:27,997 INFO L433 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-02-04 18:46:27,997 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 352 transitions. [2018-02-04 18:46:27,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-02-04 18:46:27,998 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:46:27,998 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:46:27,998 INFO L371 AbstractCegarLoop]: === Iteration 31 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:46:27,998 INFO L82 PathProgramCache]: Analyzing trace with hash 1940478412, now seen corresponding path program 1 times [2018-02-04 18:46:27,998 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:46:27,998 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:46:27,999 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:27,999 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:27,999 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:28,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:28,011 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:46:28,085 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-02-04 18:46:28,085 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 18:46:28,085 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 18:46:28,086 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:28,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:28,141 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 18:46:28,145 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2018-02-04 18:46:28,145 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:28,150 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2018-02-04 18:46:28,150 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:28,155 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:28,155 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:16, output treesize:14 [2018-02-04 18:46:28,195 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:28,196 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:28,196 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-02-04 18:46:28,196 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:28,201 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-02-04 18:46:28,201 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:28,204 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:28,204 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:25, output treesize:18 [2018-02-04 18:46:28,217 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-02-04 18:46:28,217 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:28,221 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:28,221 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:24, output treesize:23 [2018-02-04 18:46:28,268 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 18:46:28,268 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-02-04 18:46:28,268 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9] total 14 [2018-02-04 18:46:28,268 INFO L409 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-02-04 18:46:28,269 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-02-04 18:46:28,269 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2018-02-04 18:46:28,269 INFO L87 Difference]: Start difference. First operand 286 states and 352 transitions. Second operand 15 states. [2018-02-04 18:46:28,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:46:28,739 INFO L93 Difference]: Finished difference Result 348 states and 410 transitions. [2018-02-04 18:46:28,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-02-04 18:46:28,739 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 73 [2018-02-04 18:46:28,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:46:28,740 INFO L225 Difference]: With dead ends: 348 [2018-02-04 18:46:28,740 INFO L226 Difference]: Without dead ends: 348 [2018-02-04 18:46:28,741 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 66 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=174, Invalid=528, Unknown=0, NotChecked=0, Total=702 [2018-02-04 18:46:28,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2018-02-04 18:46:28,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 314. [2018-02-04 18:46:28,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 314 states. [2018-02-04 18:46:28,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 403 transitions. [2018-02-04 18:46:28,743 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 403 transitions. Word has length 73 [2018-02-04 18:46:28,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:46:28,743 INFO L432 AbstractCegarLoop]: Abstraction has 314 states and 403 transitions. [2018-02-04 18:46:28,743 INFO L433 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-02-04 18:46:28,743 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 403 transitions. [2018-02-04 18:46:28,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-02-04 18:46:28,743 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:46:28,743 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:46:28,744 INFO L371 AbstractCegarLoop]: === Iteration 32 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:46:28,744 INFO L82 PathProgramCache]: Analyzing trace with hash 1940478411, now seen corresponding path program 1 times [2018-02-04 18:46:28,744 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:46:28,744 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:46:28,744 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:28,744 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:28,745 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:28,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:28,754 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:46:28,757 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 18:46:28,757 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 18:46:28,757 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 18:46:28,757 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:28,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:28,782 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 18:46:28,784 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2018-02-04 18:46:28,784 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:28,785 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:28,785 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-02-04 18:46:28,788 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:28,788 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-02-04 18:46:28,789 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:28,792 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:28,792 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:11 [2018-02-04 18:46:28,800 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:28,801 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:28,801 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 30 [2018-02-04 18:46:28,802 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:28,808 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:28,808 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:24, output treesize:19 [2018-02-04 18:46:28,865 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:28,865 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:28,866 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:28,868 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:28,868 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 45 [2018-02-04 18:46:28,869 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:28,877 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:28,878 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:29, output treesize:23 [2018-02-04 18:46:28,895 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:28,897 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:28,898 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:28,899 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 43 [2018-02-04 18:46:28,899 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:28,908 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:28,908 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:33, output treesize:28 [2018-02-04 18:46:28,950 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 11 treesize of output 8 [2018-02-04 18:46:28,951 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2018-02-04 18:46:28,951 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:28,952 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:28,960 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:28,961 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:42, output treesize:38 [2018-02-04 18:46:28,991 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 31 treesize of output 40 [2018-02-04 18:46:28,993 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 32 treesize of output 31 [2018-02-04 18:46:28,993 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:29,003 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:29,011 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:29,011 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:56, output treesize:32 [2018-02-04 18:46:29,087 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 51 treesize of output 47 [2018-02-04 18:46:29,088 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 5 [2018-02-04 18:46:29,088 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:29,097 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:29,112 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 42 treesize of output 40 [2018-02-04 18:46:29,113 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-02-04 18:46:29,114 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:29,118 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:29,131 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 29 [2018-02-04 18:46:29,132 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 10 [2018-02-04 18:46:29,132 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:29,135 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:29,147 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 40 treesize of output 36 [2018-02-04 18:46:29,148 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-02-04 18:46:29,148 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:29,152 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:29,167 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 4 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 18:46:29,167 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 5 variables, input treesize:94, output treesize:50 [2018-02-04 18:46:29,242 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:29,242 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:29,242 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:29,243 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 36 [2018-02-04 18:46:29,243 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:29,253 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:29,253 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:47, output treesize:20 [2018-02-04 18:46:29,296 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 18:46:29,296 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 18:46:29,296 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2018-02-04 18:46:29,296 INFO L409 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-02-04 18:46:29,296 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-02-04 18:46:29,297 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=288, Unknown=0, NotChecked=0, Total=380 [2018-02-04 18:46:29,297 INFO L87 Difference]: Start difference. First operand 314 states and 403 transitions. Second operand 20 states. [2018-02-04 18:46:30,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:46:30,184 INFO L93 Difference]: Finished difference Result 356 states and 414 transitions. [2018-02-04 18:46:30,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-02-04 18:46:30,184 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 73 [2018-02-04 18:46:30,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:46:30,185 INFO L225 Difference]: With dead ends: 356 [2018-02-04 18:46:30,185 INFO L226 Difference]: Without dead ends: 356 [2018-02-04 18:46:30,185 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 192 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=272, Invalid=918, Unknown=0, NotChecked=0, Total=1190 [2018-02-04 18:46:30,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-02-04 18:46:30,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 314. [2018-02-04 18:46:30,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 314 states. [2018-02-04 18:46:30,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 390 transitions. [2018-02-04 18:46:30,189 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 390 transitions. Word has length 73 [2018-02-04 18:46:30,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:46:30,189 INFO L432 AbstractCegarLoop]: Abstraction has 314 states and 390 transitions. [2018-02-04 18:46:30,189 INFO L433 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-02-04 18:46:30,189 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 390 transitions. [2018-02-04 18:46:30,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-02-04 18:46:30,189 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:46:30,190 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:46:30,190 INFO L371 AbstractCegarLoop]: === Iteration 33 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:46:30,190 INFO L82 PathProgramCache]: Analyzing trace with hash 1940479215, now seen corresponding path program 1 times [2018-02-04 18:46:30,190 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:46:30,190 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:46:30,191 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:30,191 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:30,191 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:30,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:30,213 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:46:30,218 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 18:46:30,218 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 18:46:30,218 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 18:46:30,218 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:30,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:30,307 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 18:46:30,309 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2018-02-04 18:46:30,309 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:30,310 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:30,310 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:6, output treesize:5 [2018-02-04 18:46:30,314 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:30,315 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 21 [2018-02-04 18:46:30,315 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:30,321 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:30,321 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:14 [2018-02-04 18:46:30,336 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:30,338 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:30,338 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 30 [2018-02-04 18:46:30,338 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:30,346 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:30,346 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:24, output treesize:19 [2018-02-04 18:46:30,380 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:30,381 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:30,382 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:30,383 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 34 [2018-02-04 18:46:30,383 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:30,392 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:30,392 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:29, output treesize:23 [2018-02-04 18:46:30,425 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:30,426 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:30,427 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:30,428 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:30,429 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:30,429 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 51 [2018-02-04 18:46:30,429 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:30,449 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:30,449 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:41, output treesize:39 [2018-02-04 18:46:30,550 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 11 treesize of output 8 [2018-02-04 18:46:30,552 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-02-04 18:46:30,552 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:30,554 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:30,569 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:30,569 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:53, output treesize:49 [2018-02-04 18:46:30,610 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 52 [2018-02-04 18:46:30,612 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 47 [2018-02-04 18:46:30,612 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:30,628 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:30,639 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:30,640 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:75, output treesize:84 [2018-02-04 18:46:30,936 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 120 treesize of output 96 [2018-02-04 18:46:30,938 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:30,943 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 86 [2018-02-04 18:46:30,944 INFO L267 ElimStorePlain]: Start of recursive call 3: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-02-04 18:46:31,009 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:31,010 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 81 [2018-02-04 18:46:31,010 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:31,052 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 62 [2018-02-04 18:46:31,052 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:31,099 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 3 dim-0 vars, and 3 xjuncts. [2018-02-04 18:46:31,162 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 86 [2018-02-04 18:46:31,164 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 22 [2018-02-04 18:46:31,164 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:31,179 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 30 [2018-02-04 18:46:31,179 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 18:46:31,193 INFO L267 ElimStorePlain]: Start of recursive call 6: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 18:46:31,259 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 50 treesize of output 48 [2018-02-04 18:46:31,260 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-02-04 18:46:31,260 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:31,267 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:31,269 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 62 treesize of output 58 [2018-02-04 18:46:31,270 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2018-02-04 18:46:31,270 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:31,288 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:31,355 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 68 treesize of output 62 [2018-02-04 18:46:31,356 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 15 [2018-02-04 18:46:31,357 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:31,366 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:31,367 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 61 treesize of output 57 [2018-02-04 18:46:31,368 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2018-02-04 18:46:31,368 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:31,378 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:31,379 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 62 treesize of output 58 [2018-02-04 18:46:31,380 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2018-02-04 18:46:31,380 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:31,390 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:31,448 INFO L267 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 4 dim-2 vars, End of recursive call: 9 dim-0 vars, and 5 xjuncts. [2018-02-04 18:46:31,448 INFO L202 ElimStorePlain]: Needed 18 recursive calls to eliminate 10 variables, input treesize:241, output treesize:211 [2018-02-04 18:46:31,612 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:31,613 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:31,613 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:31,614 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:31,614 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 53 [2018-02-04 18:46:31,614 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:31,629 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:31,629 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:73, output treesize:29 [2018-02-04 18:46:31,672 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 23 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 18:46:31,672 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 18:46:31,672 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-02-04 18:46:31,672 INFO L409 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-02-04 18:46:31,672 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-02-04 18:46:31,672 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=436, Unknown=0, NotChecked=0, Total=552 [2018-02-04 18:46:31,672 INFO L87 Difference]: Start difference. First operand 314 states and 390 transitions. Second operand 24 states. [2018-02-04 18:46:33,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:46:33,479 INFO L93 Difference]: Finished difference Result 483 states and 550 transitions. [2018-02-04 18:46:33,479 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-02-04 18:46:33,479 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 73 [2018-02-04 18:46:33,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:46:33,480 INFO L225 Difference]: With dead ends: 483 [2018-02-04 18:46:33,480 INFO L226 Difference]: Without dead ends: 483 [2018-02-04 18:46:33,481 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 48 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 467 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=483, Invalid=1773, Unknown=0, NotChecked=0, Total=2256 [2018-02-04 18:46:33,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2018-02-04 18:46:33,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 337. [2018-02-04 18:46:33,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2018-02-04 18:46:33,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 429 transitions. [2018-02-04 18:46:33,484 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 429 transitions. Word has length 73 [2018-02-04 18:46:33,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:46:33,484 INFO L432 AbstractCegarLoop]: Abstraction has 337 states and 429 transitions. [2018-02-04 18:46:33,484 INFO L433 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-02-04 18:46:33,484 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 429 transitions. [2018-02-04 18:46:33,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-02-04 18:46:33,485 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:46:33,485 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:46:33,485 INFO L371 AbstractCegarLoop]: === Iteration 34 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:46:33,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1940479216, now seen corresponding path program 1 times [2018-02-04 18:46:33,485 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:46:33,485 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:46:33,486 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:33,486 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:33,486 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:33,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:33,502 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:46:33,508 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 18:46:33,509 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 18:46:33,509 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 18:46:33,509 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:33,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:33,553 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 18:46:33,578 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2018-02-04 18:46:33,578 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:33,584 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2018-02-04 18:46:33,585 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:33,590 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:33,590 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:19, output treesize:17 [2018-02-04 18:46:33,617 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:33,618 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:33,618 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-02-04 18:46:33,618 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:33,624 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-02-04 18:46:33,624 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:33,628 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:33,629 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:34, output treesize:27 [2018-02-04 18:46:33,661 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 11 treesize of output 8 [2018-02-04 18:46:33,662 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-02-04 18:46:33,662 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:33,663 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:33,674 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 11 treesize of output 8 [2018-02-04 18:46:33,675 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2018-02-04 18:46:33,675 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:33,676 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:33,683 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:33,684 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:52, output treesize:44 [2018-02-04 18:46:33,711 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 65 treesize of output 75 [2018-02-04 18:46:33,714 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 66 treesize of output 65 [2018-02-04 18:46:33,714 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:33,731 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:33,751 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 65 [2018-02-04 18:46:33,753 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:33,753 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 62 [2018-02-04 18:46:33,754 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:33,760 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:33,775 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 52 [2018-02-04 18:46:33,775 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:33,783 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:33,793 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:33,794 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:96, output treesize:102 [2018-02-04 18:46:33,904 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 102 [2018-02-04 18:46:33,905 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 61 [2018-02-04 18:46:33,906 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:33,919 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 10 [2018-02-04 18:46:33,919 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:33,926 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:33,947 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:33,947 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:144, output treesize:75 [2018-02-04 18:46:33,993 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 47 [2018-02-04 18:46:33,994 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 28 [2018-02-04 18:46:33,994 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:34,000 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2018-02-04 18:46:34,000 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:34,003 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:34,009 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:34,009 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:79, output treesize:27 [2018-02-04 18:46:34,073 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 23 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 18:46:34,074 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 18:46:34,074 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2018-02-04 18:46:34,074 INFO L409 AbstractCegarLoop]: Interpolant automaton has 22 states [2018-02-04 18:46:34,074 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2018-02-04 18:46:34,074 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2018-02-04 18:46:34,074 INFO L87 Difference]: Start difference. First operand 337 states and 429 transitions. Second operand 22 states. [2018-02-04 18:46:35,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:46:35,242 INFO L93 Difference]: Finished difference Result 399 states and 466 transitions. [2018-02-04 18:46:35,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-02-04 18:46:35,242 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 73 [2018-02-04 18:46:35,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:46:35,243 INFO L225 Difference]: With dead ends: 399 [2018-02-04 18:46:35,243 INFO L226 Difference]: Without dead ends: 399 [2018-02-04 18:46:35,243 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=406, Invalid=1574, Unknown=0, NotChecked=0, Total=1980 [2018-02-04 18:46:35,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2018-02-04 18:46:35,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 339. [2018-02-04 18:46:35,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 339 states. [2018-02-04 18:46:35,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 428 transitions. [2018-02-04 18:46:35,246 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 428 transitions. Word has length 73 [2018-02-04 18:46:35,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:46:35,246 INFO L432 AbstractCegarLoop]: Abstraction has 339 states and 428 transitions. [2018-02-04 18:46:35,246 INFO L433 AbstractCegarLoop]: Interpolant automaton has 22 states. [2018-02-04 18:46:35,246 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 428 transitions. [2018-02-04 18:46:35,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2018-02-04 18:46:35,246 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:46:35,246 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:46:35,246 INFO L371 AbstractCegarLoop]: === Iteration 35 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:46:35,246 INFO L82 PathProgramCache]: Analyzing trace with hash 1376143518, now seen corresponding path program 1 times [2018-02-04 18:46:35,247 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:46:35,247 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:46:35,247 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:35,247 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:35,247 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:35,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:35,258 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:46:35,262 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 18:46:35,262 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 18:46:35,262 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 18:46:35,262 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:35,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:35,288 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 18:46:35,379 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 11 treesize of output 8 [2018-02-04 18:46:35,380 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2018-02-04 18:46:35,381 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:35,382 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:35,389 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 11 treesize of output 8 [2018-02-04 18:46:35,390 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2018-02-04 18:46:35,390 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:35,391 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:35,396 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:35,397 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:39, output treesize:31 [2018-02-04 18:46:35,419 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 27 treesize of output 43 [2018-02-04 18:46:35,421 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 28 treesize of output 27 [2018-02-04 18:46:35,421 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:35,430 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:35,446 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 31 treesize of output 40 [2018-02-04 18:46:35,448 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 31 [2018-02-04 18:46:35,448 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:35,459 INFO L267 ElimStorePlain]: Start of recursive call 4: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:35,465 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:35,465 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:59, output treesize:45 [2018-02-04 18:46:35,529 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 47 [2018-02-04 18:46:35,530 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 25 treesize of output 19 [2018-02-04 18:46:35,531 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:35,535 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:46:35,535 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2018-02-04 18:46:35,536 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:35,539 INFO L267 ElimStorePlain]: Start of recursive call 2: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:35,544 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:35,544 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 1 variables, input treesize:70, output treesize:33 [2018-02-04 18:46:35,578 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2018-02-04 18:46:35,603 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-02-04 18:46:35,603 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:35,605 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:35,607 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:35,607 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:37, output treesize:8 [2018-02-04 18:46:35,670 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 27 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 18:46:35,670 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 18:46:35,670 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2018-02-04 18:46:35,670 INFO L409 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-02-04 18:46:35,671 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-02-04 18:46:35,671 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2018-02-04 18:46:35,671 INFO L87 Difference]: Start difference. First operand 339 states and 428 transitions. Second operand 23 states. [2018-02-04 18:46:36,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:46:36,427 INFO L93 Difference]: Finished difference Result 367 states and 431 transitions. [2018-02-04 18:46:36,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-02-04 18:46:36,427 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 79 [2018-02-04 18:46:36,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:46:36,428 INFO L225 Difference]: With dead ends: 367 [2018-02-04 18:46:36,428 INFO L226 Difference]: Without dead ends: 367 [2018-02-04 18:46:36,429 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 58 SyntacticMatches, 2 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 605 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=486, Invalid=1964, Unknown=0, NotChecked=0, Total=2450 [2018-02-04 18:46:36,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2018-02-04 18:46:36,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 338. [2018-02-04 18:46:36,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2018-02-04 18:46:36,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 425 transitions. [2018-02-04 18:46:36,431 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 425 transitions. Word has length 79 [2018-02-04 18:46:36,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:46:36,431 INFO L432 AbstractCegarLoop]: Abstraction has 338 states and 425 transitions. [2018-02-04 18:46:36,431 INFO L433 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-02-04 18:46:36,431 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 425 transitions. [2018-02-04 18:46:36,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-02-04 18:46:36,431 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:46:36,431 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:46:36,432 INFO L371 AbstractCegarLoop]: === Iteration 36 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:46:36,432 INFO L82 PathProgramCache]: Analyzing trace with hash -571812010, now seen corresponding path program 1 times [2018-02-04 18:46:36,432 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:46:36,432 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:46:36,432 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:36,432 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:36,432 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:36,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:36,451 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:46:36,456 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 18:46:36,456 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 18:46:36,456 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 18:46:36,457 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:36,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:36,544 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 18:46:36,611 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 13 treesize of output 10 [2018-02-04 18:46:36,613 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-02-04 18:46:36,613 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:36,615 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:36,620 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:36,620 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:29, output treesize:22 [2018-02-04 18:46:36,637 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:36,638 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:36,638 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-02-04 18:46:36,639 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:36,642 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:36,643 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:27, output treesize:21 [2018-02-04 18:46:36,664 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 23 [2018-02-04 18:46:36,665 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2018-02-04 18:46:36,665 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:36,668 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:36,672 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:36,672 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:32, output treesize:28 [2018-02-04 18:46:36,697 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 36 [2018-02-04 18:46:36,698 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:36,699 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-02-04 18:46:36,699 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:36,702 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:36,705 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:36,705 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 1 variables, input treesize:44, output treesize:25 [2018-02-04 18:46:36,709 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 36 [2018-02-04 18:46:36,710 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:36,719 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-02-04 18:46:36,720 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:36,723 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:36,726 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:36,727 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:44, output treesize:25 [2018-02-04 18:46:36,741 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2018-02-04 18:46:36,741 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:36,746 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:36,747 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:34, output treesize:33 [2018-02-04 18:46:36,793 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 60 [2018-02-04 18:46:36,795 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 38 treesize of output 37 [2018-02-04 18:46:36,795 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:36,829 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 35 [2018-02-04 18:46:36,829 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-02-04 18:46:36,858 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 18:46:36,871 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 18:46:36,871 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 3 variables, input treesize:47, output treesize:63 [2018-02-04 18:46:36,899 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 40 treesize of output 35 [2018-02-04 18:46:36,900 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:36,901 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 24 [2018-02-04 18:46:36,901 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:36,908 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:36,928 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 39 [2018-02-04 18:46:36,929 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:36,930 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 24 [2018-02-04 18:46:36,930 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:36,937 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:36,952 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 18:46:36,953 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:85, output treesize:77 [2018-02-04 18:46:36,986 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 54 treesize of output 50 [2018-02-04 18:46:36,987 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2018-02-04 18:46:36,988 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:36,992 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:37,020 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 53 treesize of output 75 [2018-02-04 18:46:37,023 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:37,024 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:37,024 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:46:37,027 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 59 [2018-02-04 18:46:37,028 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:37,082 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 64 [2018-02-04 18:46:37,082 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2018-02-04 18:46:37,121 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 45 [2018-02-04 18:46:37,122 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:37,146 INFO L267 ElimStorePlain]: Start of recursive call 4: 3 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-02-04 18:46:37,174 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-02-04 18:46:37,174 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 4 variables, input treesize:108, output treesize:140 [2018-02-04 18:46:37,439 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 61 [2018-02-04 18:46:37,440 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 50 [2018-02-04 18:46:37,441 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:37,457 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 32 [2018-02-04 18:46:37,457 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:37,471 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 26 [2018-02-04 18:46:37,471 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:37,484 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 21 [2018-02-04 18:46:37,484 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:37,494 INFO L267 ElimStorePlain]: Start of recursive call 2: 5 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:37,513 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 21 treesize of output 19 [2018-02-04 18:46:37,515 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-02-04 18:46:37,515 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:37,518 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:37,531 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 49 [2018-02-04 18:46:37,532 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-02-04 18:46:37,532 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:37,539 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2018-02-04 18:46:37,539 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:37,543 INFO L267 ElimStorePlain]: Start of recursive call 9: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:37,551 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 28 treesize of output 24 [2018-02-04 18:46:37,552 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 4 [2018-02-04 18:46:37,552 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:37,555 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:37,588 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 6 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-02-04 18:46:37,588 INFO L202 ElimStorePlain]: Needed 13 recursive calls to eliminate 8 variables, input treesize:202, output treesize:32 [2018-02-04 18:46:37,631 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 12 [2018-02-04 18:46:37,631 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:37,638 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2018-02-04 18:46:37,639 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:37,644 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 18:46:37,644 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:45, output treesize:21 [2018-02-04 18:46:37,696 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 18:46:37,696 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 18:46:37,696 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2018-02-04 18:46:37,696 INFO L409 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-02-04 18:46:37,696 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-02-04 18:46:37,696 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=777, Unknown=0, NotChecked=0, Total=870 [2018-02-04 18:46:37,697 INFO L87 Difference]: Start difference. First operand 338 states and 425 transitions. Second operand 30 states. [2018-02-04 18:46:38,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:46:38,857 INFO L93 Difference]: Finished difference Result 340 states and 415 transitions. [2018-02-04 18:46:38,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-02-04 18:46:38,858 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 80 [2018-02-04 18:46:38,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:46:38,858 INFO L225 Difference]: With dead ends: 340 [2018-02-04 18:46:38,858 INFO L226 Difference]: Without dead ends: 339 [2018-02-04 18:46:38,859 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 605 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=271, Invalid=2081, Unknown=0, NotChecked=0, Total=2352 [2018-02-04 18:46:38,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2018-02-04 18:46:38,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 320. [2018-02-04 18:46:38,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2018-02-04 18:46:38,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 403 transitions. [2018-02-04 18:46:38,861 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 403 transitions. Word has length 80 [2018-02-04 18:46:38,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:46:38,861 INFO L432 AbstractCegarLoop]: Abstraction has 320 states and 403 transitions. [2018-02-04 18:46:38,861 INFO L433 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-02-04 18:46:38,861 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 403 transitions. [2018-02-04 18:46:38,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2018-02-04 18:46:38,862 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:46:38,862 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:46:38,862 INFO L371 AbstractCegarLoop]: === Iteration 37 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:46:38,862 INFO L82 PathProgramCache]: Analyzing trace with hash 1577747984, now seen corresponding path program 1 times [2018-02-04 18:46:38,862 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:46:38,862 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:46:38,863 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:38,863 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:38,863 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:38,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:38,882 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:46:38,888 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 18:46:38,888 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 18:46:38,888 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 18:46:38,888 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:38,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:38,951 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 18:46:38,974 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 11 treesize of output 8 [2018-02-04 18:46:38,975 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2018-02-04 18:46:38,976 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:38,977 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:38,983 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 11 treesize of output 8 [2018-02-04 18:46:38,984 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2018-02-04 18:46:38,985 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:38,986 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:38,991 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:38,991 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:34, output treesize:26 [2018-02-04 18:46:39,002 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 27 treesize of output 22 [2018-02-04 18:46:39,004 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:39,005 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-02-04 18:46:39,005 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,007 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,016 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 27 treesize of output 22 [2018-02-04 18:46:39,018 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:39,018 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-02-04 18:46:39,019 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,021 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,025 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,025 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:64, output treesize:26 [2018-02-04 18:46:39,027 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 27 treesize of output 22 [2018-02-04 18:46:39,029 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:39,029 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-02-04 18:46:39,030 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,032 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,039 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 27 treesize of output 22 [2018-02-04 18:46:39,040 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:39,041 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-02-04 18:46:39,041 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,043 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,047 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,047 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:64, output treesize:26 [2018-02-04 18:46:39,050 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 27 treesize of output 22 [2018-02-04 18:46:39,051 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:39,052 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-02-04 18:46:39,052 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,054 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,061 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 27 treesize of output 22 [2018-02-04 18:46:39,062 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:39,063 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-02-04 18:46:39,063 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,065 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,068 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,068 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:64, output treesize:26 [2018-02-04 18:46:39,070 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:39,071 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:39,071 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-02-04 18:46:39,071 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,078 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,079 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:40, output treesize:38 [2018-02-04 18:46:39,103 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-02-04 18:46:39,104 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-02-04 18:46:39,104 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,107 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,118 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-02-04 18:46:39,119 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2018-02-04 18:46:39,119 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,122 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,130 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,131 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:60, output treesize:52 [2018-02-04 18:46:39,169 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2018-02-04 18:46:39,171 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:39,171 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-02-04 18:46:39,171 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,175 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,189 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 33 [2018-02-04 18:46:39,190 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:39,191 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-02-04 18:46:39,191 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,195 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,205 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,206 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:75, output treesize:82 [2018-02-04 18:46:39,239 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:39,240 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:39,240 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:39,241 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 52 [2018-02-04 18:46:39,241 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,253 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,254 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:93, output treesize:101 [2018-02-04 18:46:39,317 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 80 [2018-02-04 18:46:39,318 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2018-02-04 18:46:39,318 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,326 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,346 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 62 [2018-02-04 18:46:39,347 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2018-02-04 18:46:39,347 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,353 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,368 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,368 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:123, output treesize:115 [2018-02-04 18:46:39,425 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 93 [2018-02-04 18:46:39,427 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:39,428 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-02-04 18:46:39,428 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,437 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,459 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 75 [2018-02-04 18:46:39,460 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:39,461 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-02-04 18:46:39,461 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,467 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,481 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,482 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:150, output treesize:112 [2018-02-04 18:46:39,489 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 93 [2018-02-04 18:46:39,491 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:39,492 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-02-04 18:46:39,492 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,502 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,525 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 75 [2018-02-04 18:46:39,527 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:39,528 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-02-04 18:46:39,528 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,535 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,548 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,549 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:150, output treesize:112 [2018-02-04 18:46:39,559 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:39,560 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:39,560 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:39,560 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:39,561 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 43 [2018-02-04 18:46:39,561 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,575 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,575 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:117, output treesize:109 [2018-02-04 18:46:39,641 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 94 [2018-02-04 18:46:39,643 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2018-02-04 18:46:39,643 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,653 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,681 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 87 [2018-02-04 18:46:39,683 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2018-02-04 18:46:39,683 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,692 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,710 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,711 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:134, output treesize:112 [2018-02-04 18:46:39,744 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:39,745 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 80 [2018-02-04 18:46:39,747 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 74 [2018-02-04 18:46:39,748 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,757 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,779 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 65 [2018-02-04 18:46:39,781 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:39,782 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 23 [2018-02-04 18:46:39,782 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,790 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,805 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,805 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:134, output treesize:112 [2018-02-04 18:46:39,848 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 134 [2018-02-04 18:46:39,849 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 18 treesize of output 17 [2018-02-04 18:46:39,849 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,862 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,887 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 129 [2018-02-04 18:46:39,889 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2018-02-04 18:46:39,889 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,900 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,917 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:39,917 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:164, output treesize:212 [2018-02-04 18:46:40,158 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 183 treesize of output 189 [2018-02-04 18:46:40,162 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 147 treesize of output 129 [2018-02-04 18:46:40,163 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:40,177 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:40,206 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 173 treesize of output 134 [2018-02-04 18:46:40,209 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 118 [2018-02-04 18:46:40,210 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:40,222 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:40,240 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:40,240 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:240, output treesize:135 [2018-02-04 18:46:40,388 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 122 [2018-02-04 18:46:40,394 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 22 [2018-02-04 18:46:40,394 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2018-02-04 18:46:40,413 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 18:46:40,450 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:40,451 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:40,451 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:40,453 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:40,455 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:46:40,457 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 170 [2018-02-04 18:46:40,467 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 67 treesize of output 59 [2018-02-04 18:46:40,468 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:40,493 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:40,496 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:40,496 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:40,497 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:40,499 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:40,503 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 169 [2018-02-04 18:46:40,515 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 75 [2018-02-04 18:46:40,516 INFO L267 ElimStorePlain]: Start of recursive call 7: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 4 xjuncts. [2018-02-04 18:46:40,545 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:40,589 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 8 dim-0 vars, and 2 xjuncts. [2018-02-04 18:46:40,589 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 6 variables, input treesize:160, output treesize:255 [2018-02-04 18:46:40,669 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:40,671 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:40,673 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 179 treesize of output 157 [2018-02-04 18:46:40,678 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 44 [2018-02-04 18:46:40,678 INFO L267 ElimStorePlain]: Start of recursive call 3: 3 dim-0 vars, End of recursive call: 3 dim-0 vars, and 2 xjuncts. [2018-02-04 18:46:40,705 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2018-02-04 18:46:40,705 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:40,730 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 55 [2018-02-04 18:46:40,731 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:40,739 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 75 treesize of output 75 [2018-02-04 18:46:40,740 INFO L267 ElimStorePlain]: Start of recursive call 6: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 4 xjuncts. [2018-02-04 18:46:40,799 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:46:40,800 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 15 [2018-02-04 18:46:40,800 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:40,858 INFO L267 ElimStorePlain]: Start of recursive call 2: 4 dim-1 vars, End of recursive call: 10 dim-0 vars, and 5 xjuncts. [2018-02-04 18:46:40,967 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 83 [2018-02-04 18:46:40,968 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-02-04 18:46:40,968 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:40,983 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 1 [2018-02-04 18:46:40,983 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:40,993 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 7 [2018-02-04 18:46:41,076 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:41,090 INFO L267 ElimStorePlain]: Start of recursive call 8: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:41,094 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 83 [2018-02-04 18:46:41,095 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 1 [2018-02-04 18:46:41,095 INFO L267 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:41,110 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-02-04 18:46:41,110 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:41,120 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 7 [2018-02-04 18:46:41,120 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:41,132 INFO L267 ElimStorePlain]: Start of recursive call 12: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:41,136 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 67 [2018-02-04 18:46:41,138 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-02-04 18:46:41,138 INFO L267 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:41,148 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 9 treesize of output 5 [2018-02-04 18:46:41,149 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:41,163 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 7 [2018-02-04 18:46:41,163 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:41,173 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-02-04 18:46:41,174 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:41,180 INFO L267 ElimStorePlain]: Start of recursive call 16: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:41,185 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 79 [2018-02-04 18:46:41,186 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 9 treesize of output 5 [2018-02-04 18:46:41,186 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:41,202 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-02-04 18:46:41,202 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:41,213 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 11 [2018-02-04 18:46:41,213 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:41,239 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 7 [2018-02-04 18:46:41,239 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:41,246 INFO L267 ElimStorePlain]: Start of recursive call 21: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:41,250 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 67 [2018-02-04 18:46:41,252 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 9 [2018-02-04 18:46:41,252 INFO L267 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:41,262 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-02-04 18:46:41,262 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:41,271 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 1 [2018-02-04 18:46:41,271 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:41,285 INFO L267 ElimStorePlain]: Start of recursive call 26: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:41,352 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:41,353 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:41,356 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 173 treesize of output 151 [2018-02-04 18:46:41,357 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:46:41,357 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 15 [2018-02-04 18:46:41,358 INFO L267 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:41,376 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 1 [2018-02-04 18:46:41,376 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:41,394 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 53 treesize of output 49 [2018-02-04 18:46:41,395 INFO L267 ElimStorePlain]: Start of recursive call 33: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-02-04 18:46:41,416 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 56 [2018-02-04 18:46:41,416 INFO L267 ElimStorePlain]: Start of recursive call 34: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:41,420 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 66 [2018-02-04 18:46:41,421 INFO L267 ElimStorePlain]: Start of recursive call 35: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2018-02-04 18:46:41,453 INFO L267 ElimStorePlain]: Start of recursive call 30: 4 dim-1 vars, End of recursive call: 6 dim-0 vars, and 3 xjuncts. [2018-02-04 18:46:41,551 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 66 [2018-02-04 18:46:41,552 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 9 [2018-02-04 18:46:41,553 INFO L267 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:41,564 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-02-04 18:46:41,564 INFO L267 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:41,574 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 9 treesize of output 5 [2018-02-04 18:46:41,574 INFO L267 ElimStorePlain]: Start of recursive call 39: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:41,584 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-02-04 18:46:41,584 INFO L267 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:41,592 INFO L267 ElimStorePlain]: Start of recursive call 36: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:41,596 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 82 treesize of output 80 [2018-02-04 18:46:41,599 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2018-02-04 18:46:41,599 INFO L267 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:41,613 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-02-04 18:46:41,613 INFO L267 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:41,624 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 1 [2018-02-04 18:46:41,624 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:41,641 INFO L267 ElimStorePlain]: Start of recursive call 41: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:41,645 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 62 [2018-02-04 18:46:41,646 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 9 treesize of output 5 [2018-02-04 18:46:41,647 INFO L267 ElimStorePlain]: Start of recursive call 46: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:41,658 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2018-02-04 18:46:41,658 INFO L267 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:41,668 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-02-04 18:46:41,668 INFO L267 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:41,677 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 3 [2018-02-04 18:46:41,677 INFO L267 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:41,684 INFO L267 ElimStorePlain]: Start of recursive call 45: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:41,758 INFO L267 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 4 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-02-04 18:46:41,758 INFO L202 ElimStorePlain]: Needed 49 recursive calls to eliminate 12 variables, input treesize:353, output treesize:15 [2018-02-04 18:46:41,846 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 1 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 18:46:41,846 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 18:46:41,846 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2018-02-04 18:46:41,847 INFO L409 AbstractCegarLoop]: Interpolant automaton has 32 states [2018-02-04 18:46:41,847 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2018-02-04 18:46:41,847 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=898, Unknown=0, NotChecked=0, Total=992 [2018-02-04 18:46:41,847 INFO L87 Difference]: Start difference. First operand 320 states and 403 transitions. Second operand 32 states. [2018-02-04 18:46:43,160 WARN L146 SmtUtils]: Spent 101ms on a formula simplification. DAG size of input: 75 DAG size of output 71 [2018-02-04 18:46:43,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:46:43,534 INFO L93 Difference]: Finished difference Result 330 states and 413 transitions. [2018-02-04 18:46:43,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-02-04 18:46:43,534 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 82 [2018-02-04 18:46:43,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:46:43,535 INFO L225 Difference]: With dead ends: 330 [2018-02-04 18:46:43,535 INFO L226 Difference]: Without dead ends: 330 [2018-02-04 18:46:43,535 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 715 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=266, Invalid=2490, Unknown=0, NotChecked=0, Total=2756 [2018-02-04 18:46:43,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2018-02-04 18:46:43,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 325. [2018-02-04 18:46:43,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2018-02-04 18:46:43,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 408 transitions. [2018-02-04 18:46:43,537 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 408 transitions. Word has length 82 [2018-02-04 18:46:43,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:46:43,538 INFO L432 AbstractCegarLoop]: Abstraction has 325 states and 408 transitions. [2018-02-04 18:46:43,538 INFO L433 AbstractCegarLoop]: Interpolant automaton has 32 states. [2018-02-04 18:46:43,538 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 408 transitions. [2018-02-04 18:46:43,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-02-04 18:46:43,538 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:46:43,538 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:46:43,538 INFO L371 AbstractCegarLoop]: === Iteration 38 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:46:43,538 INFO L82 PathProgramCache]: Analyzing trace with hash -1287273604, now seen corresponding path program 1 times [2018-02-04 18:46:43,538 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:46:43,538 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:46:43,539 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:43,539 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:43,539 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:43,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:43,548 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:46:43,598 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-02-04 18:46:43,598 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 18:46:43,598 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-04 18:46:43,598 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-04 18:46:43,598 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-04 18:46:43,599 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-02-04 18:46:43,599 INFO L87 Difference]: Start difference. First operand 325 states and 408 transitions. Second operand 7 states. [2018-02-04 18:46:43,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:46:43,899 INFO L93 Difference]: Finished difference Result 424 states and 512 transitions. [2018-02-04 18:46:43,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-02-04 18:46:43,899 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2018-02-04 18:46:43,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:46:43,900 INFO L225 Difference]: With dead ends: 424 [2018-02-04 18:46:43,900 INFO L226 Difference]: Without dead ends: 424 [2018-02-04 18:46:43,900 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2018-02-04 18:46:43,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2018-02-04 18:46:43,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 350. [2018-02-04 18:46:43,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2018-02-04 18:46:43,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 451 transitions. [2018-02-04 18:46:43,903 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 451 transitions. Word has length 83 [2018-02-04 18:46:43,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:46:43,903 INFO L432 AbstractCegarLoop]: Abstraction has 350 states and 451 transitions. [2018-02-04 18:46:43,903 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-04 18:46:43,903 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 451 transitions. [2018-02-04 18:46:43,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-02-04 18:46:43,903 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:46:43,903 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:46:43,904 INFO L371 AbstractCegarLoop]: === Iteration 39 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:46:43,904 INFO L82 PathProgramCache]: Analyzing trace with hash -1287273605, now seen corresponding path program 1 times [2018-02-04 18:46:43,904 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:46:43,904 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:46:43,904 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:43,904 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:43,904 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:43,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:43,913 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:46:43,937 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-02-04 18:46:43,938 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 18:46:43,938 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 18:46:43,938 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 18:46:43,938 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 18:46:43,938 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-04 18:46:43,938 INFO L87 Difference]: Start difference. First operand 350 states and 451 transitions. Second operand 6 states. [2018-02-04 18:46:44,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:46:44,087 INFO L93 Difference]: Finished difference Result 404 states and 487 transitions. [2018-02-04 18:46:44,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-04 18:46:44,087 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 83 [2018-02-04 18:46:44,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:46:44,088 INFO L225 Difference]: With dead ends: 404 [2018-02-04 18:46:44,088 INFO L226 Difference]: Without dead ends: 404 [2018-02-04 18:46:44,088 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-02-04 18:46:44,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2018-02-04 18:46:44,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 348. [2018-02-04 18:46:44,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2018-02-04 18:46:44,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 435 transitions. [2018-02-04 18:46:44,090 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 435 transitions. Word has length 83 [2018-02-04 18:46:44,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:46:44,091 INFO L432 AbstractCegarLoop]: Abstraction has 348 states and 435 transitions. [2018-02-04 18:46:44,091 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 18:46:44,091 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 435 transitions. [2018-02-04 18:46:44,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2018-02-04 18:46:44,091 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:46:44,091 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:46:44,091 INFO L371 AbstractCegarLoop]: === Iteration 40 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:46:44,091 INFO L82 PathProgramCache]: Analyzing trace with hash -1287272801, now seen corresponding path program 1 times [2018-02-04 18:46:44,091 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:46:44,091 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:46:44,092 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:44,092 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:44,092 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:44,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:44,104 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:46:44,110 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 18:46:44,110 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 18:46:44,110 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 18:46:44,111 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:44,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:44,146 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 18:46:44,151 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2018-02-04 18:46:44,151 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:44,154 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:44,154 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:12 [2018-02-04 18:46:44,176 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:44,177 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:44,177 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 21 [2018-02-04 18:46:44,177 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:44,182 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:44,182 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:21 [2018-02-04 18:46:44,201 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 11 treesize of output 8 [2018-02-04 18:46:44,203 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2018-02-04 18:46:44,203 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:44,204 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:44,228 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 11 treesize of output 8 [2018-02-04 18:46:44,230 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2018-02-04 18:46:44,230 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:44,232 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:44,241 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:44,241 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:43, output treesize:35 [2018-02-04 18:46:44,266 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 27 treesize of output 22 [2018-02-04 18:46:44,269 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:44,270 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-02-04 18:46:44,270 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:44,274 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:44,288 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 27 treesize of output 22 [2018-02-04 18:46:44,290 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:44,292 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-02-04 18:46:44,292 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:44,295 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:44,303 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:44,304 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:73, output treesize:35 [2018-02-04 18:46:44,308 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 27 treesize of output 22 [2018-02-04 18:46:44,318 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:44,320 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-02-04 18:46:44,320 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:44,324 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:44,340 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 27 treesize of output 22 [2018-02-04 18:46:44,343 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:44,344 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-02-04 18:46:44,344 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:44,348 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:44,357 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:44,357 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:73, output treesize:35 [2018-02-04 18:46:44,360 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:44,361 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:44,362 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:44,362 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 13 [2018-02-04 18:46:44,362 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:44,373 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:44,373 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:36 [2018-02-04 18:46:44,419 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-02-04 18:46:44,421 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2018-02-04 18:46:44,421 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:44,425 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:44,438 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-02-04 18:46:44,439 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2018-02-04 18:46:44,439 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:44,442 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:44,452 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:44,452 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:61, output treesize:39 [2018-02-04 18:46:44,479 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-02-04 18:46:44,480 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-02-04 18:46:44,481 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:44,484 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:44,497 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-02-04 18:46:44,498 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2018-02-04 18:46:44,498 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:44,501 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:44,511 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:44,511 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:61, output treesize:53 [2018-02-04 18:46:44,534 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 74 [2018-02-04 18:46:44,536 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2018-02-04 18:46:44,536 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:44,541 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:44,557 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 77 [2018-02-04 18:46:44,558 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 18 treesize of output 17 [2018-02-04 18:46:44,558 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:44,565 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:44,575 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:44,575 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:105, output treesize:153 [2018-02-04 18:46:44,786 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 181 treesize of output 141 [2018-02-04 18:46:44,788 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 144 treesize of output 123 [2018-02-04 18:46:44,788 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:44,804 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:44,827 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 144 treesize of output 115 [2018-02-04 18:46:44,830 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 111 treesize of output 87 [2018-02-04 18:46:44,830 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:44,842 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:44,856 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 2 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:44,856 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 5 variables, input treesize:216, output treesize:84 [2018-02-04 18:46:44,947 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:44,951 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 71 [2018-02-04 18:46:44,953 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2018-02-04 18:46:44,953 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:44,962 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:44,977 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:44,981 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 82 [2018-02-04 18:46:44,983 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-02-04 18:46:44,983 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:45,011 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:45,025 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:45,025 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:106, output treesize:92 [2018-02-04 18:46:45,064 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 87 [2018-02-04 18:46:45,065 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:46:45,066 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2018-02-04 18:46:45,066 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:45,080 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 1 [2018-02-04 18:46:45,080 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:45,086 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 33 [2018-02-04 18:46:45,086 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:45,091 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:45,103 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 50 [2018-02-04 18:46:45,105 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 22 treesize of output 16 [2018-02-04 18:46:45,105 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:45,112 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 24 treesize of output 12 [2018-02-04 18:46:45,113 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:45,118 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:46:45,118 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2018-02-04 18:46:45,118 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:45,122 INFO L267 ElimStorePlain]: Start of recursive call 6: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:45,127 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:45,127 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 6 variables, input treesize:145, output treesize:7 [2018-02-04 18:46:45,180 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 18:46:45,180 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 18:46:45,180 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2018-02-04 18:46:45,180 INFO L409 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-02-04 18:46:45,180 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-02-04 18:46:45,180 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=621, Unknown=7, NotChecked=0, Total=702 [2018-02-04 18:46:45,180 INFO L87 Difference]: Start difference. First operand 348 states and 435 transitions. Second operand 27 states. [2018-02-04 18:46:46,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:46:46,710 INFO L93 Difference]: Finished difference Result 387 states and 468 transitions. [2018-02-04 18:46:46,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-02-04 18:46:46,710 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 83 [2018-02-04 18:46:46,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:46:46,711 INFO L225 Difference]: With dead ends: 387 [2018-02-04 18:46:46,711 INFO L226 Difference]: Without dead ends: 387 [2018-02-04 18:46:46,712 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 592 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=265, Invalid=2064, Unknown=23, NotChecked=0, Total=2352 [2018-02-04 18:46:46,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2018-02-04 18:46:46,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 339. [2018-02-04 18:46:46,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 339 states. [2018-02-04 18:46:46,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 421 transitions. [2018-02-04 18:46:46,715 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 421 transitions. Word has length 83 [2018-02-04 18:46:46,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:46:46,715 INFO L432 AbstractCegarLoop]: Abstraction has 339 states and 421 transitions. [2018-02-04 18:46:46,715 INFO L433 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-02-04 18:46:46,715 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 421 transitions. [2018-02-04 18:46:46,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-02-04 18:46:46,715 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:46:46,715 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:46:46,715 INFO L371 AbstractCegarLoop]: === Iteration 41 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:46:46,715 INFO L82 PathProgramCache]: Analyzing trace with hash 92341820, now seen corresponding path program 1 times [2018-02-04 18:46:46,715 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:46:46,716 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:46:46,716 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:46,716 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:46,716 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:46,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:46,723 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:46:46,773 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-02-04 18:46:46,774 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 18:46:46,774 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 18:46:46,774 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 18:46:46,774 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 18:46:46,774 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-04 18:46:46,774 INFO L87 Difference]: Start difference. First operand 339 states and 421 transitions. Second operand 6 states. [2018-02-04 18:46:46,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:46:46,941 INFO L93 Difference]: Finished difference Result 383 states and 458 transitions. [2018-02-04 18:46:46,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-04 18:46:46,942 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 84 [2018-02-04 18:46:46,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:46:46,943 INFO L225 Difference]: With dead ends: 383 [2018-02-04 18:46:46,943 INFO L226 Difference]: Without dead ends: 383 [2018-02-04 18:46:46,943 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-02-04 18:46:46,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2018-02-04 18:46:46,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 346. [2018-02-04 18:46:46,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2018-02-04 18:46:46,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 429 transitions. [2018-02-04 18:46:46,945 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 429 transitions. Word has length 84 [2018-02-04 18:46:46,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:46:46,946 INFO L432 AbstractCegarLoop]: Abstraction has 346 states and 429 transitions. [2018-02-04 18:46:46,946 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 18:46:46,946 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 429 transitions. [2018-02-04 18:46:46,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-02-04 18:46:46,946 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:46:46,946 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:46:46,946 INFO L371 AbstractCegarLoop]: === Iteration 42 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:46:46,946 INFO L82 PathProgramCache]: Analyzing trace with hash 92341821, now seen corresponding path program 1 times [2018-02-04 18:46:46,946 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:46:46,946 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:46:46,947 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:46,947 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:46,947 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:46,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:46,957 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:46:47,009 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-02-04 18:46:47,009 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 18:46:47,009 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-04 18:46:47,009 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-04 18:46:47,010 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-04 18:46:47,010 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-02-04 18:46:47,010 INFO L87 Difference]: Start difference. First operand 346 states and 429 transitions. Second operand 7 states. [2018-02-04 18:46:47,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 18:46:47,233 INFO L93 Difference]: Finished difference Result 395 states and 460 transitions. [2018-02-04 18:46:47,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-02-04 18:46:47,233 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 84 [2018-02-04 18:46:47,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 18:46:47,234 INFO L225 Difference]: With dead ends: 395 [2018-02-04 18:46:47,234 INFO L226 Difference]: Without dead ends: 395 [2018-02-04 18:46:47,234 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2018-02-04 18:46:47,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2018-02-04 18:46:47,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 318. [2018-02-04 18:46:47,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2018-02-04 18:46:47,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 378 transitions. [2018-02-04 18:46:47,236 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 378 transitions. Word has length 84 [2018-02-04 18:46:47,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 18:46:47,236 INFO L432 AbstractCegarLoop]: Abstraction has 318 states and 378 transitions. [2018-02-04 18:46:47,236 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-04 18:46:47,236 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 378 transitions. [2018-02-04 18:46:47,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-02-04 18:46:47,237 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 18:46:47,237 INFO L351 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 18:46:47,237 INFO L371 AbstractCegarLoop]: === Iteration 43 === [mainErr51RequiresViolation, mainErr66EnsuresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr58RequiresViolation, mainErr62RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr65RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr63RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr61RequiresViolation, mainErr59RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr64RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr60RequiresViolation, mainErr9RequiresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 18:46:47,237 INFO L82 PathProgramCache]: Analyzing trace with hash 960015950, now seen corresponding path program 1 times [2018-02-04 18:46:47,237 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 18:46:47,237 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 18:46:47,237 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:47,238 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:47,238 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 18:46:47,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:47,256 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 18:46:47,262 INFO L430 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown lemma type! [2018-02-04 18:46:47,263 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 18:46:47,263 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 18:46:47,263 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 18:46:47,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 18:46:47,386 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 18:46:47,399 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2018-02-04 18:46:47,399 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:47,405 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2018-02-04 18:46:47,405 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:47,410 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:47,410 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:22, output treesize:20 [2018-02-04 18:46:47,428 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 11 treesize of output 8 [2018-02-04 18:46:47,428 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2018-02-04 18:46:47,429 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:47,430 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:47,437 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 11 treesize of output 8 [2018-02-04 18:46:47,438 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2018-02-04 18:46:47,438 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:47,439 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:47,444 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:47,444 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:45, output treesize:34 [2018-02-04 18:46:47,469 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 21 treesize of output 16 [2018-02-04 18:46:47,470 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:47,471 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-02-04 18:46:47,471 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:47,474 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:47,483 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 21 treesize of output 16 [2018-02-04 18:46:47,484 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:47,485 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 23 [2018-02-04 18:46:47,485 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:47,488 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:47,494 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:47,494 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:57, output treesize:40 [2018-02-04 18:46:47,518 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:47,518 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:47,518 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 4 [2018-02-04 18:46:47,519 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:47,529 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-02-04 18:46:47,529 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:47,538 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:47,538 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:51, output treesize:44 [2018-02-04 18:46:47,569 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 29 [2018-02-04 18:46:47,571 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2018-02-04 18:46:47,571 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:47,575 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:47,588 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 20 [2018-02-04 18:46:47,589 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 7 [2018-02-04 18:46:47,589 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:47,592 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:47,601 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:47,601 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:66, output treesize:58 [2018-02-04 18:46:47,643 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2018-02-04 18:46:47,644 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:47,645 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-02-04 18:46:47,645 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:47,649 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:47,663 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 42 [2018-02-04 18:46:47,665 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:47,666 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-02-04 18:46:47,666 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:47,670 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:47,686 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:47,687 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:93, output treesize:55 [2018-02-04 18:46:47,691 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 33 [2018-02-04 18:46:47,693 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:47,694 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-02-04 18:46:47,694 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:47,698 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:47,711 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 42 [2018-02-04 18:46:47,713 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:47,713 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 14 [2018-02-04 18:46:47,713 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:47,717 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:47,725 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:47,725 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 2 variables, input treesize:93, output treesize:55 [2018-02-04 18:46:47,728 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 20 [2018-02-04 18:46:47,728 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:47,737 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:47,738 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:64, output treesize:63 [2018-02-04 18:46:47,828 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 1 [2018-02-04 18:46:47,829 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:47,863 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 30 treesize of output 59 [2018-02-04 18:46:47,866 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 34 treesize of output 29 [2018-02-04 18:46:47,866 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:47,903 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 36 [2018-02-04 18:46:47,904 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-02-04 18:46:47,942 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 27 treesize of output 26 [2018-02-04 18:46:47,942 INFO L267 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:47,953 INFO L267 ElimStorePlain]: Start of recursive call 3: 4 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 18:46:47,990 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 66 [2018-02-04 18:46:47,993 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:47,993 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 44 [2018-02-04 18:46:47,994 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:48,047 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 36 treesize of output 35 [2018-02-04 18:46:48,047 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:48,060 INFO L267 ElimStorePlain]: Start of recursive call 7: 4 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:48,080 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-02-04 18:46:48,080 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 3 variables, input treesize:101, output treesize:170 [2018-02-04 18:46:48,178 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 107 treesize of output 111 [2018-02-04 18:46:48,180 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 96 [2018-02-04 18:46:48,181 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:48,228 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 18:46:48,294 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:48,295 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:48,295 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 106 [2018-02-04 18:46:48,297 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 31 [2018-02-04 18:46:48,297 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:48,313 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:48,353 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:48,354 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:46:48,356 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 97 [2018-02-04 18:46:48,358 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:48,358 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 50 [2018-02-04 18:46:48,358 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:48,371 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:48,413 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:46:48,421 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 92 treesize of output 99 [2018-02-04 18:46:48,422 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:48,423 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 61 [2018-02-04 18:46:48,423 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:48,436 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:48,466 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-2 vars, End of recursive call: and 2 xjuncts. [2018-02-04 18:46:48,466 INFO L202 ElimStorePlain]: Needed 9 recursive calls to eliminate 4 variables, input treesize:202, output treesize:194 [2018-02-04 18:46:48,535 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 156 treesize of output 152 [2018-02-04 18:46:48,540 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:48,540 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 147 treesize of output 170 [2018-02-04 18:46:48,540 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:48,724 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:48,726 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:48,731 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 131 treesize of output 178 [2018-02-04 18:46:48,732 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2018-02-04 18:46:48,844 INFO L267 ElimStorePlain]: Start of recursive call 2: 3 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 18:46:48,923 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:48,925 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:48,926 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:48,927 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 138 treesize of output 137 [2018-02-04 18:46:48,940 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 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 3 case distinctions, treesize of input 79 treesize of output 118 [2018-02-04 18:46:48,940 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 18:46:48,961 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:49,051 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 148 treesize of output 217 [2018-02-04 18:46:49,055 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:49,056 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:46:49,061 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 166 treesize of output 201 [2018-02-04 18:46:49,061 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-02-04 18:46:49,237 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:49,238 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 156 [2018-02-04 18:46:49,238 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:49,337 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:49,338 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:49,338 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:46:49,338 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:46:49,340 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 135 [2018-02-04 18:46:49,340 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:49,476 INFO L267 ElimStorePlain]: Start of recursive call 7: 4 dim-1 vars, End of recursive call: and 3 xjuncts. [2018-02-04 18:46:49,478 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:49,479 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:49,479 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 170 [2018-02-04 18:46:49,481 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:49,481 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:46:49,482 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 154 [2018-02-04 18:46:49,482 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:49,502 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:49,579 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 119 [2018-02-04 18:46:49,580 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 46 [2018-02-04 18:46:49,580 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:49,590 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:49,658 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 4 dim-2 vars, End of recursive call: 2 dim-0 vars, and 4 xjuncts. [2018-02-04 18:46:49,658 INFO L202 ElimStorePlain]: Needed 14 recursive calls to eliminate 7 variables, input treesize:295, output treesize:721 [2018-02-04 18:46:50,106 WARN L146 SmtUtils]: Spent 143ms on a formula simplification. DAG size of input: 116 DAG size of output 83 [2018-02-04 18:46:51,250 WARN L146 SmtUtils]: Spent 180ms on a formula simplification. DAG size of input: 101 DAG size of output 100 [2018-02-04 18:46:51,269 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:51,272 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:51,274 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 322 treesize of output 273 [2018-02-04 18:46:51,287 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 263 treesize of output 225 [2018-02-04 18:46:51,289 INFO L267 ElimStorePlain]: Start of recursive call 3: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 3 xjuncts. [2018-02-04 18:46:51,405 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 3 xjuncts. [2018-02-04 18:46:51,868 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:51,869 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:51,870 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 185 treesize of output 165 [2018-02-04 18:46:51,884 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 152 treesize of output 140 [2018-02-04 18:46:51,886 INFO L267 ElimStorePlain]: Start of recursive call 5: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 3 xjuncts. [2018-02-04 18:46:51,970 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 3 xjuncts. [2018-02-04 18:46:52,889 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:52,890 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:46:52,891 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 137 treesize of output 137 [2018-02-04 18:46:52,893 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:52,894 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 90 [2018-02-04 18:46:52,894 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:52,915 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:52,917 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:52,920 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:46:52,920 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 189 treesize of output 200 [2018-02-04 18:46:52,923 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:52,923 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 126 [2018-02-04 18:46:52,923 INFO L267 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:52,946 INFO L267 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:52,948 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:52,949 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:46:52,950 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 129 [2018-02-04 18:46:52,952 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:52,953 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 86 [2018-02-04 18:46:52,953 INFO L267 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:52,973 INFO L267 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:53,435 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:53,435 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:53,437 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:53,437 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 241 treesize of output 215 [2018-02-04 18:46:53,449 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 212 treesize of output 196 [2018-02-04 18:46:53,451 INFO L267 ElimStorePlain]: Start of recursive call 13: 4 dim-0 vars, End of recursive call: 4 dim-0 vars, and 3 xjuncts. [2018-02-04 18:46:53,562 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 3 xjuncts. [2018-02-04 18:46:54,325 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:54,325 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:54,326 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:54,326 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:46:54,327 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 181 treesize of output 226 [2018-02-04 18:46:54,330 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:54,331 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:54,336 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 122 treesize of output 168 [2018-02-04 18:46:54,337 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:54,374 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:54,376 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:54,377 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:54,378 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:54,378 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:46:54,379 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 253 treesize of output 314 [2018-02-04 18:46:54,382 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:54,383 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:54,395 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 154 treesize of output 297 [2018-02-04 18:46:54,395 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:54,427 INFO L267 ElimStorePlain]: Start of recursive call 16: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:54,429 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:54,430 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:54,431 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:54,431 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:46:54,432 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 193 treesize of output 238 [2018-02-04 18:46:54,435 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:54,435 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:54,441 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 122 treesize of output 201 [2018-02-04 18:46:54,441 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:54,473 INFO L267 ElimStorePlain]: Start of recursive call 18: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:46:55,033 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:55,036 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:46:55,039 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 218 treesize of output 205 [2018-02-04 18:46:55,041 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:55,042 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 78 [2018-02-04 18:46:55,042 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:55,063 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:55,065 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:55,068 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:46:55,073 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 222 treesize of output 239 [2018-02-04 18:46:55,075 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:55,075 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 78 [2018-02-04 18:46:55,075 INFO L267 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:55,098 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:55,101 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:55,105 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:46:55,108 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 326 treesize of output 359 [2018-02-04 18:46:55,110 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:46:55,111 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 110 [2018-02-04 18:46:55,111 INFO L267 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2018-02-04 18:46:55,137 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:46:55,467 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 6 dim-2 vars, End of recursive call: 21 dim-0 vars, and 9 xjuncts. [2018-02-04 18:46:55,467 INFO L202 ElimStorePlain]: Needed 25 recursive calls to eliminate 8 variables, input treesize:749, output treesize:1922 [2018-02-04 18:47:02,331 WARN L146 SmtUtils]: Spent 6126ms on a formula simplification. DAG size of input: 368 DAG size of output 133 [2018-02-04 18:47:04,093 WARN L143 SmtUtils]: Spent 100ms on a formula simplification that was a NOOP. DAG size: 142 [2018-02-04 18:47:04,599 WARN L143 SmtUtils]: Spent 116ms on a formula simplification that was a NOOP. DAG size: 146 [2018-02-04 18:47:05,375 WARN L143 SmtUtils]: Spent 160ms on a formula simplification that was a NOOP. DAG size: 150 [2018-02-04 18:47:05,385 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 185 treesize of output 180 [2018-02-04 18:47:05,386 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 18:47:05,388 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 290 treesize of output 285 [2018-02-04 18:47:05,388 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:47:05,390 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 257 treesize of output 252 [2018-02-04 18:47:05,390 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 18:47:05,620 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:47:05,621 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:47:05,622 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:47:05,624 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 282 treesize of output 303 [2018-02-04 18:47:05,628 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:47:05,630 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:47:05,632 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:47:05,633 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:47:05,639 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:47:05,664 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 9 case distinctions, treesize of input 95 treesize of output 280 [2018-02-04 18:47:05,664 WARN L130 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-02-04 18:47:05,678 INFO L267 ElimStorePlain]: Start of recursive call 6: 32 dim-0 vars, End of recursive call: 32 dim-0 vars, and 50 xjuncts. [2018-02-04 18:47:05,926 INFO L267 ElimStorePlain]: Start of recursive call 5: 1 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-02-04 18:47:06,323 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:47:06,333 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 249 treesize of output 247 [2018-02-04 18:47:06,336 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:47:06,336 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:47:06,337 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:47:06,343 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 36 treesize of output 74 [2018-02-04 18:47:06,344 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-02-04 18:47:06,398 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 18:47:06,826 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:47:06,834 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 247 treesize of output 249 [2018-02-04 18:47:06,836 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:47:06,837 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:47:06,837 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 51 [2018-02-04 18:47:06,837 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-02-04 18:47:06,870 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:47:06,873 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:47:06,883 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 234 treesize of output 236 [2018-02-04 18:47:06,885 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:47:06,886 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:47:06,886 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 53 [2018-02-04 18:47:06,886 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-02-04 18:47:06,917 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:47:07,280 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:47:07,285 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 273 treesize of output 275 [2018-02-04 18:47:07,287 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:47:07,288 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:47:07,288 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 89 [2018-02-04 18:47:07,288 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-02-04 18:47:07,320 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:47:07,322 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:47:07,326 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 296 treesize of output 298 [2018-02-04 18:47:07,328 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:47:07,329 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:47:07,329 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 87 [2018-02-04 18:47:07,329 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-02-04 18:47:07,365 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:47:07,367 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:47:07,371 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 277 treesize of output 279 [2018-02-04 18:47:07,374 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:47:07,374 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:47:07,375 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 87 [2018-02-04 18:47:07,375 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-02-04 18:47:07,408 INFO L267 ElimStorePlain]: Start of recursive call 17: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:47:07,716 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:47:07,720 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 177 treesize of output 175 [2018-02-04 18:47:07,723 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:47:07,724 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:47:07,730 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 86 [2018-02-04 18:47:07,731 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 2 xjuncts. [2018-02-04 18:47:07,772 INFO L267 ElimStorePlain]: Start of recursive call 19: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 18:47:08,154 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:47:08,158 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 179 treesize of output 181 [2018-02-04 18:47:08,160 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:47:08,161 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:47:08,161 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 51 [2018-02-04 18:47:08,162 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-02-04 18:47:08,194 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:47:08,196 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:47:08,200 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 162 treesize of output 164 [2018-02-04 18:47:08,202 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:47:08,202 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:47:08,203 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 53 [2018-02-04 18:47:08,203 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-02-04 18:47:08,227 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:47:08,590 INFO L267 ElimStorePlain]: Start of recursive call 1: 12 dim-0 vars, 1 dim-1 vars, 6 dim-2 vars, End of recursive call: 22 dim-0 vars, and 7 xjuncts. [2018-02-04 18:47:08,590 INFO L202 ElimStorePlain]: Needed 24 recursive calls to eliminate 19 variables, input treesize:733, output treesize:1667 [2018-02-04 18:47:37,697 WARN L146 SmtUtils]: Spent 27580ms on a formula simplification. DAG size of input: 327 DAG size of output 278 [2018-02-04 18:47:45,556 WARN L143 SmtUtils]: Spent 6803ms on a formula simplification that was a NOOP. DAG size: 300 [2018-02-04 18:48:00,755 WARN L143 SmtUtils]: Spent 13909ms on a formula simplification that was a NOOP. DAG size: 300 [2018-02-04 18:48:00,789 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:00,790 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:00,790 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:00,792 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:00,811 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 290 treesize of output 289 [2018-02-04 18:48:00,814 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:00,815 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 322 treesize of output 338 [2018-02-04 18:48:00,815 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-02-04 18:48:00,942 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 18:48:03,072 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:03,073 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:03,074 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:03,076 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 226 treesize of output 223 [2018-02-04 18:48:03,078 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:03,079 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:03,079 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 101 [2018-02-04 18:48:03,079 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:48:03,114 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:48:04,675 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:04,692 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 259 treesize of output 252 [2018-02-04 18:48:04,696 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:04,699 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:04,700 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:04,701 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:04,701 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:04,702 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:04,702 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:04,702 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:04,708 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:04,719 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 0 new quantified variables, introduced 4 case distinctions, treesize of input 239 treesize of output 429 [2018-02-04 18:48:04,720 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 3 xjuncts. [2018-02-04 18:48:04,962 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 248 treesize of output 267 [2018-02-04 18:48:04,963 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2018-02-04 18:48:05,128 INFO L267 ElimStorePlain]: Start of recursive call 6: 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2018-02-04 18:48:06,854 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 185 treesize of output 138 [2018-02-04 18:48:06,857 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:06,857 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:06,859 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 96 [2018-02-04 18:48:06,860 INFO L267 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2018-02-04 18:48:06,879 INFO L267 ElimStorePlain]: Start of recursive call 9: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:48:08,185 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:08,185 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:08,186 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:08,186 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:08,187 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 355 treesize of output 284 [2018-02-04 18:48:08,191 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:08,192 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:08,192 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:08,194 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:08,203 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:08,204 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:08,204 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:08,216 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 171 treesize of output 203 [2018-02-04 18:48:08,216 INFO L267 ElimStorePlain]: Start of recursive call 12: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:48:08,259 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:48:09,285 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:09,286 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:09,286 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:09,293 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 245 treesize of output 205 [2018-02-04 18:48:09,296 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:09,296 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:09,297 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:09,297 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:09,300 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 169 [2018-02-04 18:48:09,300 INFO L267 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2018-02-04 18:48:09,336 INFO L267 ElimStorePlain]: Start of recursive call 13: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:48:10,172 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:10,172 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:10,173 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:10,192 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 286 treesize of output 281 [2018-02-04 18:48:10,195 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:10,196 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 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 312 treesize of output 330 [2018-02-04 18:48:10,196 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-02-04 18:48:10,303 INFO L267 ElimStorePlain]: Start of recursive call 15: 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2018-02-04 18:48:11,039 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:11,042 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:11,058 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 265 treesize of output 266 [2018-02-04 18:48:11,067 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 276 treesize of output 301 [2018-02-04 18:48:11,068 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 2 xjuncts. [2018-02-04 18:48:11,244 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:11,245 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:11,247 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:11,248 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:11,248 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:11,249 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:11,251 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:11,265 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 201 treesize of output 348 [2018-02-04 18:48:11,266 INFO L267 ElimStorePlain]: Start of recursive call 20: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:48:11,456 INFO L267 ElimStorePlain]: Start of recursive call 21: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:48:11,574 INFO L267 ElimStorePlain]: Start of recursive call 22: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:48:11,682 INFO L267 ElimStorePlain]: Start of recursive call 19: 3 dim-1 vars, End of recursive call: 3 dim-0 vars, and 3 xjuncts. [2018-02-04 18:48:11,901 INFO L267 ElimStorePlain]: Start of recursive call 17: 2 dim-1 vars, End of recursive call: 3 dim-0 vars, and 5 xjuncts. [2018-02-04 18:48:12,986 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:12,986 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:12,988 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:12,988 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:12,988 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 347 treesize of output 274 [2018-02-04 18:48:12,992 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:12,992 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:12,992 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:12,993 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:13,000 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 166 treesize of output 290 [2018-02-04 18:48:13,000 INFO L267 ElimStorePlain]: Start of recursive call 24: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:48:13,050 INFO L267 ElimStorePlain]: Start of recursive call 23: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:48:13,833 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:13,834 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:13,843 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 327 treesize of output 277 [2018-02-04 18:48:13,845 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:13,846 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:13,849 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 238 treesize of output 219 [2018-02-04 18:48:13,849 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-02-04 18:48:13,879 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:48:14,574 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:14,575 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:14,576 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:14,578 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 234 treesize of output 237 [2018-02-04 18:48:14,581 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:14,581 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:14,582 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 186 [2018-02-04 18:48:14,582 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-02-04 18:48:14,612 INFO L267 ElimStorePlain]: Start of recursive call 27: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:48:15,252 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:15,258 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 275 treesize of output 218 [2018-02-04 18:48:15,260 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:15,261 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:15,261 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:15,261 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:15,264 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 171 treesize of output 224 [2018-02-04 18:48:15,265 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-02-04 18:48:15,291 INFO L267 ElimStorePlain]: Start of recursive call 29: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:48:15,893 INFO L267 ElimStorePlain]: Start of recursive call 1: 22 dim-0 vars, 12 dim-2 vars, End of recursive call: 28 dim-0 vars, and 13 xjuncts. [2018-02-04 18:48:15,893 INFO L202 ElimStorePlain]: Needed 30 recursive calls to eliminate 34 variables, input treesize:1739, output treesize:3029 [2018-02-04 18:48:17,772 WARN L146 SmtUtils]: Spent 975ms on a formula simplification. DAG size of input: 501 DAG size of output 231 [2018-02-04 18:48:17,789 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:17,796 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 358 treesize of output 284 [2018-02-04 18:48:17,811 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 268 treesize of output 269 [2018-02-04 18:48:17,812 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 18:48:17,942 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:17,942 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:17,943 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:17,943 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 245 treesize of output 207 [2018-02-04 18:48:17,943 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-02-04 18:48:17,945 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:17,945 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:17,945 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:17,946 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 249 treesize of output 215 [2018-02-04 18:48:17,946 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-02-04 18:48:18,050 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 183 treesize of output 156 [2018-02-04 18:48:18,050 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:48:18,052 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 175 treesize of output 146 [2018-02-04 18:48:18,052 INFO L267 ElimStorePlain]: Start of recursive call 7: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:48:18,144 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:18,145 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:18,145 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 233 treesize of output 249 [2018-02-04 18:48:18,146 INFO L267 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2018-02-04 18:48:18,231 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:18,232 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:18,232 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:18,242 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 227 treesize of output 219 [2018-02-04 18:48:18,243 INFO L267 ElimStorePlain]: Start of recursive call 9: 2 dim-0 vars, End of recursive call: 2 dim-0 vars, and 3 xjuncts. [2018-02-04 18:48:18,438 INFO L267 ElimStorePlain]: Start of recursive call 2: 5 dim-1 vars, End of recursive call: 5 dim-0 vars, and 5 xjuncts. [2018-02-04 18:48:18,747 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:18,749 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:18,752 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 161 treesize of output 133 [2018-02-04 18:48:18,755 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:18,756 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:18,757 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:18,766 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 125 treesize of output 142 [2018-02-04 18:48:18,767 INFO L267 ElimStorePlain]: Start of recursive call 11: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 18:48:18,830 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:18,830 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:18,831 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:18,831 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:18,832 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 57 [2018-02-04 18:48:18,832 INFO L267 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2018-02-04 18:48:18,872 INFO L267 ElimStorePlain]: Start of recursive call 10: 5 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:48:18,873 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:18,874 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:18,878 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 141 treesize of output 119 [2018-02-04 18:48:18,880 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:18,882 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:18,883 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:18,891 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 115 treesize of output 139 [2018-02-04 18:48:18,891 INFO L267 ElimStorePlain]: Start of recursive call 14: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 18:48:18,949 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 107 [2018-02-04 18:48:18,949 INFO L267 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2018-02-04 18:48:18,988 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:18,988 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:18,989 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 54 [2018-02-04 18:48:18,989 INFO L267 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2018-02-04 18:48:19,023 INFO L267 ElimStorePlain]: Start of recursive call 13: 5 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:48:19,029 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 150 treesize of output 120 [2018-02-04 18:48:19,032 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 96 [2018-02-04 18:48:19,032 INFO L267 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2018-02-04 18:48:19,075 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:19,076 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:19,076 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 92 [2018-02-04 18:48:19,077 INFO L267 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2018-02-04 18:48:19,116 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:19,118 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 66 [2018-02-04 18:48:19,118 INFO L267 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2018-02-04 18:48:19,153 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:19,154 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:19,156 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 91 treesize of output 85 [2018-02-04 18:48:19,157 INFO L267 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2018-02-04 18:48:19,188 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:19,189 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:19,190 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 57 [2018-02-04 18:48:19,190 INFO L267 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2018-02-04 18:48:19,209 INFO L267 ElimStorePlain]: Start of recursive call 17: 5 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:48:19,211 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 142 treesize of output 108 [2018-02-04 18:48:19,214 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:19,215 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:19,215 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 44 [2018-02-04 18:48:19,215 INFO L267 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2018-02-04 18:48:19,234 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:19,236 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 45 [2018-02-04 18:48:19,236 INFO L267 ElimStorePlain]: Start of recursive call 25: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:48:19,252 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 14 [2018-02-04 18:48:19,252 INFO L267 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2018-02-04 18:48:19,262 INFO L267 ElimStorePlain]: Start of recursive call 23: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:48:19,264 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:19,265 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:19,266 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 152 treesize of output 122 [2018-02-04 18:48:19,268 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 10 [2018-02-04 18:48:19,268 INFO L267 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2018-02-04 18:48:19,288 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:19,289 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:19,289 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 37 [2018-02-04 18:48:19,290 INFO L267 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2018-02-04 18:48:19,307 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:19,308 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:19,308 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 39 [2018-02-04 18:48:19,309 INFO L267 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2018-02-04 18:48:19,320 INFO L267 ElimStorePlain]: Start of recursive call 27: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:48:19,525 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:19,526 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 200 treesize of output 184 [2018-02-04 18:48:19,528 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:19,529 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:19,529 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 101 [2018-02-04 18:48:19,529 INFO L267 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2018-02-04 18:48:19,549 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:19,550 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 83 [2018-02-04 18:48:19,551 INFO L267 ElimStorePlain]: Start of recursive call 33: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:48:19,565 INFO L267 ElimStorePlain]: Start of recursive call 31: 2 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:48:19,761 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:19,763 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 352 treesize of output 284 [2018-02-04 18:48:19,765 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:19,766 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:19,766 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:19,767 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 172 treesize of output 144 [2018-02-04 18:48:19,767 INFO L267 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2018-02-04 18:48:19,796 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 23 treesize of output 11 [2018-02-04 18:48:19,796 INFO L267 ElimStorePlain]: Start of recursive call 36: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:48:19,818 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 136 treesize of output 109 [2018-02-04 18:48:19,818 INFO L267 ElimStorePlain]: Start of recursive call 37: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:48:19,841 INFO L267 ElimStorePlain]: Start of recursive call 34: 3 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 18:48:20,010 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:20,011 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 287 treesize of output 230 [2018-02-04 18:48:20,013 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:20,013 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:20,015 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 95 [2018-02-04 18:48:20,015 INFO L267 ElimStorePlain]: Start of recursive call 39: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:48:20,035 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:20,036 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:20,036 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 147 treesize of output 118 [2018-02-04 18:48:20,036 INFO L267 ElimStorePlain]: Start of recursive call 40: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:48:20,052 INFO L267 ElimStorePlain]: Start of recursive call 38: 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 18:48:20,221 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 124 [2018-02-04 18:48:20,222 INFO L477 Elim1Store]: Elim1 did not use preprocessing 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 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2018-02-04 18:48:20,222 INFO L267 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2018-02-04 18:48:20,243 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:20,243 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:20,243 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 40 [2018-02-04 18:48:20,244 INFO L267 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2018-02-04 18:48:20,259 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:20,260 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:20,260 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:20,261 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:20,261 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22 [2018-02-04 18:48:20,261 INFO L267 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2018-02-04 18:48:20,273 INFO L267 ElimStorePlain]: Start of recursive call 41: 3 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:48:20,427 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:20,427 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:20,428 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 99 [2018-02-04 18:48:20,430 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:20,431 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:20,432 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:20,442 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 75 [2018-02-04 18:48:20,444 INFO L267 ElimStorePlain]: Start of recursive call 46: 5 dim-0 vars, End of recursive call: 5 dim-0 vars, and 7 xjuncts. [2018-02-04 18:48:20,468 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:20,468 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:20,468 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 26 [2018-02-04 18:48:20,468 INFO L267 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2018-02-04 18:48:20,476 INFO L267 ElimStorePlain]: Start of recursive call 45: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:48:20,619 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:20,619 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:20,620 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 132 treesize of output 104 [2018-02-04 18:48:20,622 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:20,623 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:20,624 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:20,631 INFO L477 Elim1Store]: Elim1 applied some preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 69 [2018-02-04 18:48:20,632 INFO L267 ElimStorePlain]: Start of recursive call 49: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 2 xjuncts. [2018-02-04 18:48:20,652 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 45 [2018-02-04 18:48:20,652 INFO L267 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 1 xjuncts. [2018-02-04 18:48:20,660 INFO L267 ElimStorePlain]: Start of recursive call 48: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:48:20,785 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:20,786 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 219 treesize of output 174 [2018-02-04 18:48:20,796 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:20,797 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 41 [2018-02-04 18:48:20,798 INFO L267 ElimStorePlain]: Start of recursive call 52: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:48:20,815 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 90 [2018-02-04 18:48:20,815 INFO L267 ElimStorePlain]: Start of recursive call 53: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-02-04 18:48:20,830 INFO L267 ElimStorePlain]: Start of recursive call 51: 2 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-02-04 18:48:20,954 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 81 [2018-02-04 18:48:20,955 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:20,956 INFO L682 Elim1Store]: detected equality via solver [2018-02-04 18:48:20,956 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 34 [2018-02-04 18:48:20,957 INFO L267 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 1 xjuncts. [2018-02-04 18:48:20,968 INFO L700 Elim1Store]: detected not equals via solver [2018-02-04 18:48:20,969 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-02-04 18:48:20,969 INFO L267 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 1 xjuncts. [2018-02-04 18:48:20,975 INFO L267 ElimStorePlain]: Start of recursive call 54: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 18:48:21,082 INFO L267 ElimStorePlain]: Start of recursive call 1: 16 dim-0 vars, 10 dim-2 vars, End of recursive call: 19 dim-0 vars, and 9 xjuncts. [2018-02-04 18:48:21,083 INFO L202 ElimStorePlain]: Needed 56 recursive calls to eliminate 26 variables, input treesize:1417, output treesize:308 [2018-02-04 18:48:21,425 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 18:48:21,426 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 18:48:21,426 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [42] total 42 [2018-02-04 18:48:21,426 INFO L409 AbstractCegarLoop]: Interpolant automaton has 43 states [2018-02-04 18:48:21,426 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2018-02-04 18:48:21,426 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=1613, Unknown=27, NotChecked=0, Total=1806 [2018-02-04 18:48:21,427 INFO L87 Difference]: Start difference. First operand 318 states and 378 transitions. Second operand 43 states. [2018-02-04 18:48:45,522 WARN L146 SmtUtils]: Spent 171ms on a formula simplification. DAG size of input: 101 DAG size of output 98 [2018-02-04 18:48:46,026 WARN L146 SmtUtils]: Spent 207ms on a formula simplification. DAG size of input: 107 DAG size of output 103 [2018-02-04 18:48:51,341 WARN L146 SmtUtils]: Spent 1111ms on a formula simplification. DAG size of input: 175 DAG size of output 139 [2018-02-04 18:48:57,880 WARN L146 SmtUtils]: Spent 301ms on a formula simplification. DAG size of input: 179 DAG size of output 143 [2018-02-04 18:49:11,980 WARN L146 SmtUtils]: Spent 7422ms on a formula simplification. DAG size of input: 183 DAG size of output 144 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown