/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_8-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 18:47:56,899 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 18:47:56,902 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 18:47:56,943 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 18:47:56,944 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 18:47:56,954 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 18:47:56,955 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 18:47:56,958 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 18:47:56,960 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 18:47:56,964 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 18:47:56,965 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 18:47:56,967 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 18:47:56,967 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 18:47:56,970 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 18:47:56,972 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 18:47:56,973 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 18:47:56,974 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 18:47:56,974 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 18:47:56,977 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 18:47:56,983 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 18:47:56,986 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 18:47:56,987 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 18:47:56,989 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 18:47:56,989 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 18:47:56,993 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 18:47:57,003 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 18:47:57,003 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 18:47:57,004 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 18:47:57,005 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 18:47:57,019 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 18:47:57,019 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 18:47:57,021 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 18:47:57,022 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 18:47:57,022 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 18:47:57,022 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 18:47:57,022 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 18:47:57,022 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 18:47:57,023 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 18:47:57,023 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 18:47:57,024 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 18:47:57,024 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 18:47:57,024 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 18:47:57,024 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 18:47:57,025 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 18:47:57,025 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 18:47:57,025 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 18:47:57,026 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 18:47:57,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 18:47:57,026 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 18:47:57,026 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 18:47:57,026 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 18:47:57,026 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 18:47:57,333 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 18:47:57,343 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 18:47:57,347 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 18:47:57,348 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 18:47:57,348 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 18:47:57,349 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_8-1.c [2020-08-22 18:47:57,421 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4495f87f1/d6460af11c6040a392ba0102e5b64278/FLAG7aafb26f6 [2020-08-22 18:47:57,889 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 18:47:57,890 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/fibo_2calls_8-1.c [2020-08-22 18:47:57,896 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4495f87f1/d6460af11c6040a392ba0102e5b64278/FLAG7aafb26f6 [2020-08-22 18:47:58,312 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4495f87f1/d6460af11c6040a392ba0102e5b64278 [2020-08-22 18:47:58,320 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 18:47:58,322 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 18:47:58,323 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 18:47:58,323 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 18:47:58,326 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 18:47:58,327 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:47:58" (1/1) ... [2020-08-22 18:47:58,329 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21ad413f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:47:58, skipping insertion in model container [2020-08-22 18:47:58,329 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:47:58" (1/1) ... [2020-08-22 18:47:58,337 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 18:47:58,351 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 18:47:58,563 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:47:58,567 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 18:47:58,582 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:47:58,593 INFO L208 MainTranslator]: Completed translation [2020-08-22 18:47:58,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:47:58 WrapperNode [2020-08-22 18:47:58,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 18:47:58,594 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 18:47:58,594 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 18:47:58,594 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 18:47:58,603 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:47:58" (1/1) ... [2020-08-22 18:47:58,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:47:58" (1/1) ... [2020-08-22 18:47:58,682 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:47:58" (1/1) ... [2020-08-22 18:47:58,682 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:47:58" (1/1) ... [2020-08-22 18:47:58,686 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:47:58" (1/1) ... [2020-08-22 18:47:58,689 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:47:58" (1/1) ... [2020-08-22 18:47:58,690 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:47:58" (1/1) ... [2020-08-22 18:47:58,691 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 18:47:58,691 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 18:47:58,692 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 18:47:58,692 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 18:47:58,693 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:47:58" (1/1) ... No working directory specified, using /storage/repos/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 [2020-08-22 18:47:58,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 18:47:58,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 18:47:58,749 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-08-22 18:47:58,749 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-08-22 18:47:58,749 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 18:47:58,749 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 18:47:58,749 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 18:47:58,749 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-08-22 18:47:58,750 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-08-22 18:47:58,750 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 18:47:58,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 18:47:58,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 18:47:58,963 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 18:47:58,964 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-22 18:47:58,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:47:58 BoogieIcfgContainer [2020-08-22 18:47:58,970 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 18:47:58,971 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 18:47:58,972 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 18:47:58,974 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 18:47:58,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 06:47:58" (1/3) ... [2020-08-22 18:47:58,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b3d1334 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:47:58, skipping insertion in model container [2020-08-22 18:47:58,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:47:58" (2/3) ... [2020-08-22 18:47:58,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b3d1334 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:47:58, skipping insertion in model container [2020-08-22 18:47:58,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:47:58" (3/3) ... [2020-08-22 18:47:58,978 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_8-1.c [2020-08-22 18:47:58,990 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 18:47:58,997 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 18:47:59,013 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 18:47:59,038 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 18:47:59,038 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 18:47:59,038 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 18:47:59,039 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 18:47:59,039 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 18:47:59,039 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 18:47:59,039 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 18:47:59,039 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 18:47:59,068 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-08-22 18:47:59,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-08-22 18:47:59,081 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:47:59,082 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:47:59,083 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:47:59,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:47:59,089 INFO L82 PathProgramCache]: Analyzing trace with hash -1089710179, now seen corresponding path program 1 times [2020-08-22 18:47:59,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:47:59,099 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [415382777] [2020-08-22 18:47:59,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:47:59,160 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:47:59,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:47:59,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:47:59,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:47:59,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 18:47:59,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:47:59,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:47:59,308 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [415382777] [2020-08-22 18:47:59,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:47:59,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 18:47:59,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713842799] [2020-08-22 18:47:59,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 18:47:59,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:47:59,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 18:47:59,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-22 18:47:59,333 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 5 states. [2020-08-22 18:47:59,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:47:59,445 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2020-08-22 18:47:59,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 18:47:59,448 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-08-22 18:47:59,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:47:59,459 INFO L225 Difference]: With dead ends: 58 [2020-08-22 18:47:59,460 INFO L226 Difference]: Without dead ends: 42 [2020-08-22 18:47:59,464 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 18:47:59,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-08-22 18:47:59,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-08-22 18:47:59,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-08-22 18:47:59,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-08-22 18:47:59,515 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 16 [2020-08-22 18:47:59,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:47:59,516 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-08-22 18:47:59,516 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 18:47:59,516 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-08-22 18:47:59,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-08-22 18:47:59,518 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:47:59,519 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:47:59,519 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 18:47:59,519 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:47:59,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:47:59,520 INFO L82 PathProgramCache]: Analyzing trace with hash -653728005, now seen corresponding path program 1 times [2020-08-22 18:47:59,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:47:59,521 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [4234641] [2020-08-22 18:47:59,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:47:59,523 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:47:59,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:47:59,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:47:59,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:47:59,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 18:47:59,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:47:59,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:47:59,599 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [4234641] [2020-08-22 18:47:59,600 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:47:59,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 18:47:59,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64057235] [2020-08-22 18:47:59,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 18:47:59,603 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:47:59,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 18:47:59,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-22 18:47:59,604 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 5 states. [2020-08-22 18:47:59,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:47:59,679 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-08-22 18:47:59,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 18:47:59,679 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-08-22 18:47:59,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:47:59,682 INFO L225 Difference]: With dead ends: 50 [2020-08-22 18:47:59,682 INFO L226 Difference]: Without dead ends: 44 [2020-08-22 18:47:59,684 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 18:47:59,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-08-22 18:47:59,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2020-08-22 18:47:59,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-08-22 18:47:59,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-08-22 18:47:59,697 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 17 [2020-08-22 18:47:59,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:47:59,698 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-08-22 18:47:59,698 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 18:47:59,698 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-08-22 18:47:59,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-08-22 18:47:59,700 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:47:59,700 INFO L422 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] [2020-08-22 18:47:59,701 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 18:47:59,701 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:47:59,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:47:59,702 INFO L82 PathProgramCache]: Analyzing trace with hash -1617834856, now seen corresponding path program 1 times [2020-08-22 18:47:59,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:47:59,702 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [356925936] [2020-08-22 18:47:59,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:47:59,705 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:47:59,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:47:59,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:47:59,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:47:59,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 18:47:59,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:47:59,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:47:59,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:47:59,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 18:47:59,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:47:59,822 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-22 18:47:59,823 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [356925936] [2020-08-22 18:47:59,823 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:47:59,823 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 18:47:59,823 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385808122] [2020-08-22 18:47:59,824 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 18:47:59,824 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:47:59,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 18:47:59,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-08-22 18:47:59,825 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 7 states. [2020-08-22 18:47:59,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:47:59,917 INFO L93 Difference]: Finished difference Result 82 states and 102 transitions. [2020-08-22 18:47:59,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 18:47:59,918 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-08-22 18:47:59,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:47:59,920 INFO L225 Difference]: With dead ends: 82 [2020-08-22 18:47:59,920 INFO L226 Difference]: Without dead ends: 46 [2020-08-22 18:47:59,921 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-22 18:47:59,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-08-22 18:47:59,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2020-08-22 18:47:59,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-08-22 18:47:59,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2020-08-22 18:47:59,936 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 33 [2020-08-22 18:47:59,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:47:59,938 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2020-08-22 18:47:59,938 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 18:47:59,938 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2020-08-22 18:47:59,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-08-22 18:47:59,941 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:47:59,941 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-08-22 18:47:59,942 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 18:47:59,943 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:47:59,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:47:59,945 INFO L82 PathProgramCache]: Analyzing trace with hash 887160861, now seen corresponding path program 1 times [2020-08-22 18:47:59,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:47:59,946 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1791892974] [2020-08-22 18:47:59,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:47:59,949 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:47:59,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:00,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:48:00,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:00,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 18:48:00,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:00,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:00,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:00,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:00,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:00,138 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-22 18:48:00,139 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1791892974] [2020-08-22 18:48:00,139 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:48:00,140 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 18:48:00,140 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410260724] [2020-08-22 18:48:00,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 18:48:00,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:48:00,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 18:48:00,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-08-22 18:48:00,141 INFO L87 Difference]: Start difference. First operand 44 states and 51 transitions. Second operand 7 states. [2020-08-22 18:48:00,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:48:00,312 INFO L93 Difference]: Finished difference Result 74 states and 94 transitions. [2020-08-22 18:48:00,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 18:48:00,313 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2020-08-22 18:48:00,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:48:00,316 INFO L225 Difference]: With dead ends: 74 [2020-08-22 18:48:00,316 INFO L226 Difference]: Without dead ends: 68 [2020-08-22 18:48:00,317 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-22 18:48:00,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-08-22 18:48:00,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2020-08-22 18:48:00,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-08-22 18:48:00,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 83 transitions. [2020-08-22 18:48:00,342 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 83 transitions. Word has length 34 [2020-08-22 18:48:00,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:48:00,342 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 83 transitions. [2020-08-22 18:48:00,342 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 18:48:00,342 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 83 transitions. [2020-08-22 18:48:00,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-08-22 18:48:00,347 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:48:00,348 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-08-22 18:48:00,348 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 18:48:00,348 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:48:00,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:48:00,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1875452576, now seen corresponding path program 1 times [2020-08-22 18:48:00,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:48:00,351 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1485284821] [2020-08-22 18:48:00,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:48:00,353 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:48:00,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:00,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:48:00,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:00,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 18:48:00,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:00,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:00,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:00,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:00,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:00,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-22 18:48:00,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:00,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-08-22 18:48:00,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:00,494 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-08-22 18:48:00,495 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1485284821] [2020-08-22 18:48:00,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:48:00,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-22 18:48:00,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457347787] [2020-08-22 18:48:00,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 18:48:00,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:48:00,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 18:48:00,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-22 18:48:00,497 INFO L87 Difference]: Start difference. First operand 66 states and 83 transitions. Second operand 6 states. [2020-08-22 18:48:00,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:48:00,565 INFO L93 Difference]: Finished difference Result 130 states and 178 transitions. [2020-08-22 18:48:00,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 18:48:00,566 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2020-08-22 18:48:00,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:48:00,568 INFO L225 Difference]: With dead ends: 130 [2020-08-22 18:48:00,568 INFO L226 Difference]: Without dead ends: 70 [2020-08-22 18:48:00,570 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-22 18:48:00,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-08-22 18:48:00,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-08-22 18:48:00,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-08-22 18:48:00,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 89 transitions. [2020-08-22 18:48:00,587 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 89 transitions. Word has length 50 [2020-08-22 18:48:00,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:48:00,588 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 89 transitions. [2020-08-22 18:48:00,588 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 18:48:00,588 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 89 transitions. [2020-08-22 18:48:00,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-08-22 18:48:00,591 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:48:00,591 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-08-22 18:48:00,591 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 18:48:00,591 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:48:00,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:48:00,592 INFO L82 PathProgramCache]: Analyzing trace with hash 104828256, now seen corresponding path program 1 times [2020-08-22 18:48:00,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:48:00,592 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1899102249] [2020-08-22 18:48:00,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:48:00,594 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:48:00,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:00,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:48:00,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:00,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 18:48:00,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:00,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:00,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:00,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:00,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:00,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:00,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:00,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:00,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:00,736 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-08-22 18:48:00,736 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1899102249] [2020-08-22 18:48:00,736 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:48:00,737 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 18:48:00,737 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123751735] [2020-08-22 18:48:00,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 18:48:00,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:48:00,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 18:48:00,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-22 18:48:00,738 INFO L87 Difference]: Start difference. First operand 70 states and 89 transitions. Second operand 8 states. [2020-08-22 18:48:00,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:48:00,873 INFO L93 Difference]: Finished difference Result 142 states and 197 transitions. [2020-08-22 18:48:00,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-22 18:48:00,873 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-08-22 18:48:00,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:48:00,876 INFO L225 Difference]: With dead ends: 142 [2020-08-22 18:48:00,876 INFO L226 Difference]: Without dead ends: 78 [2020-08-22 18:48:00,877 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-22 18:48:00,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-08-22 18:48:00,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 72. [2020-08-22 18:48:00,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-08-22 18:48:00,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 92 transitions. [2020-08-22 18:48:00,895 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 92 transitions. Word has length 51 [2020-08-22 18:48:00,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:48:00,896 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 92 transitions. [2020-08-22 18:48:00,896 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 18:48:00,896 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 92 transitions. [2020-08-22 18:48:00,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-08-22 18:48:00,899 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:48:00,899 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-08-22 18:48:00,899 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 18:48:00,900 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:48:00,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:48:00,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1703786405, now seen corresponding path program 1 times [2020-08-22 18:48:00,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:48:00,901 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [72739724] [2020-08-22 18:48:00,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:48:00,903 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:48:00,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:00,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:48:00,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:00,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 18:48:00,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:00,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:00,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:00,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:01,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:01,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:01,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:01,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:01,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:01,024 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-08-22 18:48:01,025 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [72739724] [2020-08-22 18:48:01,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:48:01,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 18:48:01,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585256786] [2020-08-22 18:48:01,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 18:48:01,026 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:48:01,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 18:48:01,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-22 18:48:01,027 INFO L87 Difference]: Start difference. First operand 72 states and 92 transitions. Second operand 8 states. [2020-08-22 18:48:01,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:48:01,191 INFO L93 Difference]: Finished difference Result 118 states and 158 transitions. [2020-08-22 18:48:01,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 18:48:01,191 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2020-08-22 18:48:01,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:48:01,194 INFO L225 Difference]: With dead ends: 118 [2020-08-22 18:48:01,194 INFO L226 Difference]: Without dead ends: 112 [2020-08-22 18:48:01,195 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-08-22 18:48:01,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-08-22 18:48:01,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 106. [2020-08-22 18:48:01,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-08-22 18:48:01,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 145 transitions. [2020-08-22 18:48:01,219 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 145 transitions. Word has length 52 [2020-08-22 18:48:01,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:48:01,222 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 145 transitions. [2020-08-22 18:48:01,222 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 18:48:01,222 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 145 transitions. [2020-08-22 18:48:01,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-08-22 18:48:01,227 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:48:01,228 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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] [2020-08-22 18:48:01,228 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 18:48:01,228 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:48:01,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:48:01,228 INFO L82 PathProgramCache]: Analyzing trace with hash -521446491, now seen corresponding path program 1 times [2020-08-22 18:48:01,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:48:01,229 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [639093112] [2020-08-22 18:48:01,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:48:01,231 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:48:01,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:01,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:48:01,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:01,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 18:48:01,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:01,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:01,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:01,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:01,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:01,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:01,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:01,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:01,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:01,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:01,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:01,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-22 18:48:01,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:01,399 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-08-22 18:48:01,399 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [639093112] [2020-08-22 18:48:01,399 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:48:01,400 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 18:48:01,400 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600078069] [2020-08-22 18:48:01,400 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 18:48:01,401 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:48:01,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 18:48:01,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-22 18:48:01,402 INFO L87 Difference]: Start difference. First operand 106 states and 145 transitions. Second operand 8 states. [2020-08-22 18:48:01,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:48:01,532 INFO L93 Difference]: Finished difference Result 227 states and 348 transitions. [2020-08-22 18:48:01,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 18:48:01,533 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 69 [2020-08-22 18:48:01,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:48:01,535 INFO L225 Difference]: With dead ends: 227 [2020-08-22 18:48:01,536 INFO L226 Difference]: Without dead ends: 127 [2020-08-22 18:48:01,537 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-22 18:48:01,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-08-22 18:48:01,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 115. [2020-08-22 18:48:01,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-08-22 18:48:01,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 161 transitions. [2020-08-22 18:48:01,560 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 161 transitions. Word has length 69 [2020-08-22 18:48:01,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:48:01,561 INFO L479 AbstractCegarLoop]: Abstraction has 115 states and 161 transitions. [2020-08-22 18:48:01,561 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 18:48:01,561 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 161 transitions. [2020-08-22 18:48:01,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-08-22 18:48:01,563 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:48:01,563 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 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] [2020-08-22 18:48:01,563 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 18:48:01,563 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:48:01,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:48:01,564 INFO L82 PathProgramCache]: Analyzing trace with hash -439633211, now seen corresponding path program 1 times [2020-08-22 18:48:01,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:48:01,564 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [590303439] [2020-08-22 18:48:01,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:48:01,566 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:48:01,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:01,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:48:01,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:01,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 18:48:01,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:01,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:01,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:01,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:01,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:01,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:01,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:01,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:01,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:01,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:01,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:01,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:01,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:01,726 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-08-22 18:48:01,727 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [590303439] [2020-08-22 18:48:01,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:48:01,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 18:48:01,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850873957] [2020-08-22 18:48:01,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 18:48:01,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:48:01,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 18:48:01,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-08-22 18:48:01,729 INFO L87 Difference]: Start difference. First operand 115 states and 161 transitions. Second operand 10 states. [2020-08-22 18:48:01,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:48:01,943 INFO L93 Difference]: Finished difference Result 257 states and 400 transitions. [2020-08-22 18:48:01,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-22 18:48:01,943 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 70 [2020-08-22 18:48:01,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:48:01,946 INFO L225 Difference]: With dead ends: 257 [2020-08-22 18:48:01,946 INFO L226 Difference]: Without dead ends: 151 [2020-08-22 18:48:01,948 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2020-08-22 18:48:01,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-08-22 18:48:01,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 133. [2020-08-22 18:48:01,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-08-22 18:48:01,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 191 transitions. [2020-08-22 18:48:01,970 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 191 transitions. Word has length 70 [2020-08-22 18:48:01,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:48:01,971 INFO L479 AbstractCegarLoop]: Abstraction has 133 states and 191 transitions. [2020-08-22 18:48:01,971 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 18:48:01,971 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 191 transitions. [2020-08-22 18:48:01,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-08-22 18:48:01,973 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:48:01,974 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:48:01,974 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-22 18:48:01,974 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:48:01,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:48:01,974 INFO L82 PathProgramCache]: Analyzing trace with hash 307755032, now seen corresponding path program 2 times [2020-08-22 18:48:01,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:48:01,975 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1301180367] [2020-08-22 18:48:01,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:48:01,977 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:48:01,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:02,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:48:02,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:02,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 18:48:02,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:02,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:02,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:02,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:02,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:02,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:02,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:02,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:02,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:02,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:02,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:02,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:02,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:02,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:02,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:02,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:02,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:02,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:02,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:02,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:02,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:02,219 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 5 proven. 32 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-08-22 18:48:02,220 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1301180367] [2020-08-22 18:48:02,220 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:48:02,220 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-22 18:48:02,220 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146311699] [2020-08-22 18:48:02,221 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-22 18:48:02,221 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:48:02,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-22 18:48:02,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-08-22 18:48:02,222 INFO L87 Difference]: Start difference. First operand 133 states and 191 transitions. Second operand 12 states. [2020-08-22 18:48:02,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:48:02,588 INFO L93 Difference]: Finished difference Result 265 states and 420 transitions. [2020-08-22 18:48:02,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-08-22 18:48:02,588 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 105 [2020-08-22 18:48:02,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:48:02,592 INFO L225 Difference]: With dead ends: 265 [2020-08-22 18:48:02,592 INFO L226 Difference]: Without dead ends: 116 [2020-08-22 18:48:02,594 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2020-08-22 18:48:02,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-08-22 18:48:02,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 95. [2020-08-22 18:48:02,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-08-22 18:48:02,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 117 transitions. [2020-08-22 18:48:02,609 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 117 transitions. Word has length 105 [2020-08-22 18:48:02,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:48:02,610 INFO L479 AbstractCegarLoop]: Abstraction has 95 states and 117 transitions. [2020-08-22 18:48:02,610 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-22 18:48:02,610 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 117 transitions. [2020-08-22 18:48:02,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-08-22 18:48:02,611 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:48:02,612 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:48:02,612 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-22 18:48:02,612 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:48:02,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:48:02,612 INFO L82 PathProgramCache]: Analyzing trace with hash -1534580400, now seen corresponding path program 1 times [2020-08-22 18:48:02,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:48:02,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1703076102] [2020-08-22 18:48:02,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:48:02,615 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:48:02,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:02,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:48:02,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:02,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 18:48:02,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:02,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:02,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:02,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:02,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:02,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:02,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:02,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:02,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:02,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:02,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:02,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:02,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:02,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:02,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:02,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-22 18:48:02,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:02,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:02,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:02,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:02,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:02,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:02,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:02,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:02,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:02,839 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-08-22 18:48:02,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1703076102] [2020-08-22 18:48:02,840 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:48:02,840 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 18:48:02,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533000109] [2020-08-22 18:48:02,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 18:48:02,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:48:02,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 18:48:02,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-08-22 18:48:02,842 INFO L87 Difference]: Start difference. First operand 95 states and 117 transitions. Second operand 10 states. [2020-08-22 18:48:03,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:48:03,041 INFO L93 Difference]: Finished difference Result 193 states and 255 transitions. [2020-08-22 18:48:03,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 18:48:03,042 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 123 [2020-08-22 18:48:03,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:48:03,043 INFO L225 Difference]: With dead ends: 193 [2020-08-22 18:48:03,044 INFO L226 Difference]: Without dead ends: 105 [2020-08-22 18:48:03,045 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2020-08-22 18:48:03,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-08-22 18:48:03,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2020-08-22 18:48:03,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-08-22 18:48:03,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 127 transitions. [2020-08-22 18:48:03,058 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 127 transitions. Word has length 123 [2020-08-22 18:48:03,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:48:03,059 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 127 transitions. [2020-08-22 18:48:03,059 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 18:48:03,059 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 127 transitions. [2020-08-22 18:48:03,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-08-22 18:48:03,061 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:48:03,061 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:48:03,061 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-22 18:48:03,061 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:48:03,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:48:03,062 INFO L82 PathProgramCache]: Analyzing trace with hash 822116120, now seen corresponding path program 2 times [2020-08-22 18:48:03,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:48:03,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1881916262] [2020-08-22 18:48:03,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:48:03,064 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:48:03,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:03,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:48:03,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:03,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 18:48:03,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:03,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:03,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:03,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:03,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:03,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:03,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:03,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:03,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:03,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:03,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:03,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:03,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:03,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:03,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:03,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:03,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:03,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:03,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:03,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:03,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:03,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:03,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:03,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:48:03,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:03,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:03,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:03,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:03,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:03,345 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 3 proven. 57 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-08-22 18:48:03,345 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1881916262] [2020-08-22 18:48:03,346 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:48:03,346 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-22 18:48:03,346 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118254061] [2020-08-22 18:48:03,347 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-22 18:48:03,347 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:48:03,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-22 18:48:03,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-08-22 18:48:03,347 INFO L87 Difference]: Start difference. First operand 105 states and 127 transitions. Second operand 12 states. [2020-08-22 18:48:03,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:48:03,743 INFO L93 Difference]: Finished difference Result 241 states and 326 transitions. [2020-08-22 18:48:03,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-08-22 18:48:03,743 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 140 [2020-08-22 18:48:03,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:48:03,746 INFO L225 Difference]: With dead ends: 241 [2020-08-22 18:48:03,746 INFO L226 Difference]: Without dead ends: 141 [2020-08-22 18:48:03,749 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2020-08-22 18:48:03,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2020-08-22 18:48:03,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 123. [2020-08-22 18:48:03,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-08-22 18:48:03,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 149 transitions. [2020-08-22 18:48:03,766 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 149 transitions. Word has length 140 [2020-08-22 18:48:03,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:48:03,766 INFO L479 AbstractCegarLoop]: Abstraction has 123 states and 149 transitions. [2020-08-22 18:48:03,766 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-22 18:48:03,767 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 149 transitions. [2020-08-22 18:48:03,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-08-22 18:48:03,771 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:48:03,771 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:48:03,772 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-22 18:48:03,772 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:48:03,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:48:03,772 INFO L82 PathProgramCache]: Analyzing trace with hash -1260071360, now seen corresponding path program 2 times [2020-08-22 18:48:03,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:48:03,773 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [480742206] [2020-08-22 18:48:03,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:48:03,775 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:48:03,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:03,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:48:03,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:03,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 18:48:03,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:03,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:03,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:03,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:03,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:03,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:03,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:03,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:03,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:03,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:03,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:03,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:03,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:03,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:03,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:03,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:03,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:03,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:03,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:03,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:03,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:03,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:03,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:03,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:03,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:03,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:03,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:03,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:03,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:04,033 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-08-22 18:48:04,033 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [480742206] [2020-08-22 18:48:04,034 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:48:04,034 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 18:48:04,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857515036] [2020-08-22 18:48:04,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 18:48:04,035 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:48:04,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 18:48:04,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-08-22 18:48:04,037 INFO L87 Difference]: Start difference. First operand 123 states and 149 transitions. Second operand 10 states. [2020-08-22 18:48:04,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:48:04,281 INFO L93 Difference]: Finished difference Result 244 states and 326 transitions. [2020-08-22 18:48:04,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-22 18:48:04,281 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 140 [2020-08-22 18:48:04,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:48:04,285 INFO L225 Difference]: With dead ends: 244 [2020-08-22 18:48:04,285 INFO L226 Difference]: Without dead ends: 238 [2020-08-22 18:48:04,286 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2020-08-22 18:48:04,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-08-22 18:48:04,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 213. [2020-08-22 18:48:04,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-08-22 18:48:04,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 287 transitions. [2020-08-22 18:48:04,315 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 287 transitions. Word has length 140 [2020-08-22 18:48:04,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:48:04,315 INFO L479 AbstractCegarLoop]: Abstraction has 213 states and 287 transitions. [2020-08-22 18:48:04,315 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 18:48:04,316 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 287 transitions. [2020-08-22 18:48:04,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-08-22 18:48:04,319 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:48:04,319 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 9, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:48:04,319 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-08-22 18:48:04,319 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:48:04,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:48:04,320 INFO L82 PathProgramCache]: Analyzing trace with hash -88380307, now seen corresponding path program 3 times [2020-08-22 18:48:04,320 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:48:04,320 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [550392855] [2020-08-22 18:48:04,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:48:04,322 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:48:04,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:04,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:48:04,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:04,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 18:48:04,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:04,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:04,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:04,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:04,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:04,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:04,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:04,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:04,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:04,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:04,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:04,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:04,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:04,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:04,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:04,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:04,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:04,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:04,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:04,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:04,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:04,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:04,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:04,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:04,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:04,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:04,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:04,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:04,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:04,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:04,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:04,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:48:04,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:04,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:04,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:04,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:04,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:04,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:04,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:04,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:04,667 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 21 proven. 35 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2020-08-22 18:48:04,668 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [550392855] [2020-08-22 18:48:04,668 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:48:04,668 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-08-22 18:48:04,669 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400550824] [2020-08-22 18:48:04,669 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-08-22 18:48:04,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:48:04,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-08-22 18:48:04,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-08-22 18:48:04,670 INFO L87 Difference]: Start difference. First operand 213 states and 287 transitions. Second operand 14 states. [2020-08-22 18:48:05,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:48:05,170 INFO L93 Difference]: Finished difference Result 470 states and 677 transitions. [2020-08-22 18:48:05,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-08-22 18:48:05,170 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 193 [2020-08-22 18:48:05,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:48:05,174 INFO L225 Difference]: With dead ends: 470 [2020-08-22 18:48:05,175 INFO L226 Difference]: Without dead ends: 257 [2020-08-22 18:48:05,177 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=504, Unknown=0, NotChecked=0, Total=600 [2020-08-22 18:48:05,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-08-22 18:48:05,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 233. [2020-08-22 18:48:05,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2020-08-22 18:48:05,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 310 transitions. [2020-08-22 18:48:05,203 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 310 transitions. Word has length 193 [2020-08-22 18:48:05,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:48:05,204 INFO L479 AbstractCegarLoop]: Abstraction has 233 states and 310 transitions. [2020-08-22 18:48:05,204 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-08-22 18:48:05,204 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 310 transitions. [2020-08-22 18:48:05,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2020-08-22 18:48:05,210 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:48:05,210 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 18, 18, 17, 14, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:48:05,210 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-08-22 18:48:05,210 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:48:05,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:48:05,211 INFO L82 PathProgramCache]: Analyzing trace with hash -1293350858, now seen corresponding path program 4 times [2020-08-22 18:48:05,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:48:05,211 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [880395276] [2020-08-22 18:48:05,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:48:05,214 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:48:05,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:05,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:48:05,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:05,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 18:48:05,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:05,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:05,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:05,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:05,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:05,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:05,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:05,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:05,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:05,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:05,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:05,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:05,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:05,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:05,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:05,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:05,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:05,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:05,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:05,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:05,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:05,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:05,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:05,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:05,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:05,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:05,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:05,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:05,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:05,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:05,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:05,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:05,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:05,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:05,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:05,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:05,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:05,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:05,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:05,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-08-22 18:48:05,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:05,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:05,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:05,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:05,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:05,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:05,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:05,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:05,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:05,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:05,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:05,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:05,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:05,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:05,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:05,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:05,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:05,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:05,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:05,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:05,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:05,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:05,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:05,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:05,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:05,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:05,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:05,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:05,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:05,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:05,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:05,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:05,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:05,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:05,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:05,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:05,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:06,008 INFO L134 CoverageAnalysis]: Checked inductivity of 692 backedges. 1 proven. 206 refuted. 0 times theorem prover too weak. 485 trivial. 0 not checked. [2020-08-22 18:48:06,008 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [880395276] [2020-08-22 18:48:06,009 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:48:06,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-08-22 18:48:06,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721245291] [2020-08-22 18:48:06,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-08-22 18:48:06,010 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:48:06,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-08-22 18:48:06,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-08-22 18:48:06,011 INFO L87 Difference]: Start difference. First operand 233 states and 310 transitions. Second operand 14 states. [2020-08-22 18:48:06,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:48:06,607 INFO L93 Difference]: Finished difference Result 541 states and 798 transitions. [2020-08-22 18:48:06,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-08-22 18:48:06,607 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 351 [2020-08-22 18:48:06,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:48:06,612 INFO L225 Difference]: With dead ends: 541 [2020-08-22 18:48:06,613 INFO L226 Difference]: Without dead ends: 308 [2020-08-22 18:48:06,616 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=625, Unknown=0, NotChecked=0, Total=756 [2020-08-22 18:48:06,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2020-08-22 18:48:06,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 269. [2020-08-22 18:48:06,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2020-08-22 18:48:06,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 359 transitions. [2020-08-22 18:48:06,650 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 359 transitions. Word has length 351 [2020-08-22 18:48:06,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:48:06,650 INFO L479 AbstractCegarLoop]: Abstraction has 269 states and 359 transitions. [2020-08-22 18:48:06,651 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-08-22 18:48:06,651 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 359 transitions. [2020-08-22 18:48:06,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-08-22 18:48:06,655 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:48:06,655 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:48:06,656 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-08-22 18:48:06,656 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:48:06,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:48:06,656 INFO L82 PathProgramCache]: Analyzing trace with hash 1117162661, now seen corresponding path program 5 times [2020-08-22 18:48:06,656 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:48:06,657 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1478967130] [2020-08-22 18:48:06,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:48:06,659 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:48:06,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:06,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:48:06,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:06,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 18:48:06,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:06,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:06,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:06,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:06,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:06,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:06,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:06,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:06,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:06,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:06,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:06,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:06,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:06,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:06,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:06,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:06,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:06,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:06,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:06,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:06,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:06,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:06,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:06,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:06,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:06,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:06,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:06,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:06,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:06,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:06,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:06,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:48:06,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:06,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:06,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:06,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:06,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:06,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:06,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:06,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:06,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:06,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:06,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:06,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:06,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:06,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:06,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:06,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:06,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:07,004 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2020-08-22 18:48:07,004 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1478967130] [2020-08-22 18:48:07,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:48:07,005 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-22 18:48:07,005 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311022785] [2020-08-22 18:48:07,005 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 18:48:07,006 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:48:07,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 18:48:07,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-08-22 18:48:07,006 INFO L87 Difference]: Start difference. First operand 269 states and 359 transitions. Second operand 11 states. [2020-08-22 18:48:07,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:48:07,423 INFO L93 Difference]: Finished difference Result 530 states and 743 transitions. [2020-08-22 18:48:07,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 18:48:07,424 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 228 [2020-08-22 18:48:07,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:48:07,432 INFO L225 Difference]: With dead ends: 530 [2020-08-22 18:48:07,432 INFO L226 Difference]: Without dead ends: 524 [2020-08-22 18:48:07,434 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2020-08-22 18:48:07,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2020-08-22 18:48:07,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 499. [2020-08-22 18:48:07,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 499 states. [2020-08-22 18:48:07,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 696 transitions. [2020-08-22 18:48:07,514 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 696 transitions. Word has length 228 [2020-08-22 18:48:07,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:48:07,515 INFO L479 AbstractCegarLoop]: Abstraction has 499 states and 696 transitions. [2020-08-22 18:48:07,515 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 18:48:07,515 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 696 transitions. [2020-08-22 18:48:07,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2020-08-22 18:48:07,533 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:48:07,534 INFO L422 BasicCegarLoop]: trace histogram [29, 29, 26, 26, 25, 22, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 8, 8, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:48:07,534 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-08-22 18:48:07,534 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:48:07,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:48:07,535 INFO L82 PathProgramCache]: Analyzing trace with hash 1689130430, now seen corresponding path program 6 times [2020-08-22 18:48:07,535 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:48:07,535 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [154956564] [2020-08-22 18:48:07,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:48:07,539 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:48:07,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:07,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:48:07,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:07,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 18:48:07,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:07,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:07,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:07,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:07,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:07,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:07,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:07,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:07,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:07,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:07,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:07,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:07,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:07,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:07,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:07,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:07,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:07,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:07,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:07,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:07,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:07,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:07,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:07,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:07,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:07,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:07,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:07,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:07,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:07,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-08-22 18:48:07,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:07,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:07,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:07,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:07,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:07,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:07,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:07,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:07,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:07,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:07,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:07,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:07,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:07,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:07,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:07,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:07,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:07,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:07,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:07,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:07,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:07,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:07,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:07,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:07,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:08,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-08-22 18:48:08,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:08,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:08,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:08,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:08,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:08,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:08,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:08,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:08,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:08,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:08,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:08,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:08,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:08,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:08,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:08,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:08,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:08,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:08,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:08,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:08,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:08,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:08,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:08,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:08,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:08,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:08,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:08,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-08-22 18:48:08,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:08,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:08,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:08,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:08,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:08,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:08,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:08,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:08,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:08,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:08,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:08,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:08,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:08,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:08,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:08,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:08,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:08,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:08,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:08,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:08,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:08,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:08,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:08,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:08,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:08,430 INFO L134 CoverageAnalysis]: Checked inductivity of 1112 backedges. 5 proven. 185 refuted. 0 times theorem prover too weak. 922 trivial. 0 not checked. [2020-08-22 18:48:08,430 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [154956564] [2020-08-22 18:48:08,431 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:48:08,431 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-22 18:48:08,431 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513075625] [2020-08-22 18:48:08,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 18:48:08,432 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:48:08,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 18:48:08,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-08-22 18:48:08,433 INFO L87 Difference]: Start difference. First operand 499 states and 696 transitions. Second operand 11 states. [2020-08-22 18:48:08,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:48:08,708 INFO L93 Difference]: Finished difference Result 987 states and 1429 transitions. [2020-08-22 18:48:08,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-22 18:48:08,709 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 495 [2020-08-22 18:48:08,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:48:08,717 INFO L225 Difference]: With dead ends: 987 [2020-08-22 18:48:08,717 INFO L226 Difference]: Without dead ends: 501 [2020-08-22 18:48:08,723 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2020-08-22 18:48:08,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2020-08-22 18:48:08,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 489. [2020-08-22 18:48:08,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 489 states. [2020-08-22 18:48:08,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 671 transitions. [2020-08-22 18:48:08,780 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 671 transitions. Word has length 495 [2020-08-22 18:48:08,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:48:08,781 INFO L479 AbstractCegarLoop]: Abstraction has 489 states and 671 transitions. [2020-08-22 18:48:08,781 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 18:48:08,781 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 671 transitions. [2020-08-22 18:48:08,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 564 [2020-08-22 18:48:08,794 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:48:08,795 INFO L422 BasicCegarLoop]: trace histogram [34, 34, 29, 29, 26, 25, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 12, 12, 8, 8, 8, 8, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:48:08,795 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-08-22 18:48:08,795 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:48:08,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:48:08,796 INFO L82 PathProgramCache]: Analyzing trace with hash -162868606, now seen corresponding path program 7 times [2020-08-22 18:48:08,796 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:48:08,796 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1798192494] [2020-08-22 18:48:08,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:48:08,799 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:48:08,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:08,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:48:08,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:08,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 18:48:09,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:09,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:09,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:09,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:09,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:09,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:09,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:09,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:09,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:09,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:09,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:09,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:09,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:09,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:09,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:09,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:09,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:48:09,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:09,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:09,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:09,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:09,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:09,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:09,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:09,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:09,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:09,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:09,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:09,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:09,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:09,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:09,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2020-08-22 18:48:09,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:09,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:09,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:09,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:09,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:09,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:09,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:09,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:09,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:09,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:09,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:09,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:09,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:09,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:09,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:09,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:48:09,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:09,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:09,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:09,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:09,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:09,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:09,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:09,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:09,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:09,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:09,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:09,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:09,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:09,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:09,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:09,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:10,429 INFO L134 CoverageAnalysis]: Checked inductivity of 1358 backedges. 24 proven. 188 refuted. 0 times theorem prover too weak. 1146 trivial. 0 not checked. [2020-08-22 18:48:10,429 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1798192494] [2020-08-22 18:48:10,429 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:48:10,430 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-08-22 18:48:10,430 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195457682] [2020-08-22 18:48:10,430 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-22 18:48:10,431 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:48:10,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-22 18:48:10,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-08-22 18:48:10,432 INFO L87 Difference]: Start difference. First operand 489 states and 671 transitions. Second operand 16 states. [2020-08-22 18:48:11,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:48:11,271 INFO L93 Difference]: Finished difference Result 892 states and 1362 transitions. [2020-08-22 18:48:11,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-08-22 18:48:11,272 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 563 [2020-08-22 18:48:11,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:48:11,281 INFO L225 Difference]: With dead ends: 892 [2020-08-22 18:48:11,281 INFO L226 Difference]: Without dead ends: 401 [2020-08-22 18:48:11,289 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=186, Invalid=1004, Unknown=0, NotChecked=0, Total=1190 [2020-08-22 18:48:11,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2020-08-22 18:48:11,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 343. [2020-08-22 18:48:11,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 343 states. [2020-08-22 18:48:11,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 463 transitions. [2020-08-22 18:48:11,344 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 463 transitions. Word has length 563 [2020-08-22 18:48:11,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:48:11,344 INFO L479 AbstractCegarLoop]: Abstraction has 343 states and 463 transitions. [2020-08-22 18:48:11,344 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-22 18:48:11,345 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 463 transitions. [2020-08-22 18:48:11,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2020-08-22 18:48:11,352 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:48:11,353 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 21, 21, 18, 17, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 6, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:48:11,353 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-08-22 18:48:11,353 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:48:11,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:48:11,354 INFO L82 PathProgramCache]: Analyzing trace with hash -1725201844, now seen corresponding path program 8 times [2020-08-22 18:48:11,355 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:48:11,355 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [112708676] [2020-08-22 18:48:11,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:48:11,359 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:48:11,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:48:11,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 18:48:11,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:11,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:11,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:11,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:11,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:11,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:11,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:11,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:11,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:11,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:11,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:11,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:11,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:11,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:11,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:11,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:11,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:48:11,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:11,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:11,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:11,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:11,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-08-22 18:48:11,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:11,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:11,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:11,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:11,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:11,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:11,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:11,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:11,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:11,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:11,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:11,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:11,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:11,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:11,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:11,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:48:11,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:11,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:11,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:11,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:11,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:11,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:12,086 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 10 proven. 142 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2020-08-22 18:48:12,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [112708676] [2020-08-22 18:48:12,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:48:12,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-08-22 18:48:12,087 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002872744] [2020-08-22 18:48:12,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-08-22 18:48:12,088 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:48:12,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-08-22 18:48:12,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-08-22 18:48:12,089 INFO L87 Difference]: Start difference. First operand 343 states and 463 transitions. Second operand 14 states. [2020-08-22 18:48:12,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:48:12,606 INFO L93 Difference]: Finished difference Result 707 states and 995 transitions. [2020-08-22 18:48:12,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-08-22 18:48:12,607 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 387 [2020-08-22 18:48:12,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:48:12,614 INFO L225 Difference]: With dead ends: 707 [2020-08-22 18:48:12,614 INFO L226 Difference]: Without dead ends: 385 [2020-08-22 18:48:12,619 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=504, Unknown=0, NotChecked=0, Total=600 [2020-08-22 18:48:12,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2020-08-22 18:48:12,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 353. [2020-08-22 18:48:12,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 353 states. [2020-08-22 18:48:12,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 465 transitions. [2020-08-22 18:48:12,690 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 465 transitions. Word has length 387 [2020-08-22 18:48:12,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:48:12,690 INFO L479 AbstractCegarLoop]: Abstraction has 353 states and 465 transitions. [2020-08-22 18:48:12,691 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-08-22 18:48:12,691 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 465 transitions. [2020-08-22 18:48:12,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2020-08-22 18:48:12,696 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:48:12,697 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 17, 16, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 6, 6, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:48:12,697 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-08-22 18:48:12,697 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:48:12,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:48:12,698 INFO L82 PathProgramCache]: Analyzing trace with hash 549243331, now seen corresponding path program 9 times [2020-08-22 18:48:12,698 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:48:12,698 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1921767712] [2020-08-22 18:48:12,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:48:12,703 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:48:12,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:12,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:48:12,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:12,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 18:48:12,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:12,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:12,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:12,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:12,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:13,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:13,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:13,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:13,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:13,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:13,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:13,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:13,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:13,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:13,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:13,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:13,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:13,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:13,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:13,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:13,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:13,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:13,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:13,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:13,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:13,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:13,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:13,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:13,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:13,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:13,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:13,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:13,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:13,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:48:13,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:13,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:13,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:13,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:13,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:13,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:13,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:13,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:13,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:13,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:13,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:13,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:13,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:13,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:13,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:13,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:13,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:13,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-08-22 18:48:13,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:13,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:13,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:13,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:13,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:13,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:13,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:13,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:13,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:13,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:13,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:13,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:13,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:13,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:13,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:13,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:13,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:13,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:13,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:13,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:13,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:13,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:13,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:13,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:13,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:13,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:13,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:13,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:13,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:13,420 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2020-08-22 18:48:13,420 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1921767712] [2020-08-22 18:48:13,421 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:48:13,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-08-22 18:48:13,421 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235330726] [2020-08-22 18:48:13,422 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-22 18:48:13,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:48:13,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-22 18:48:13,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-08-22 18:48:13,425 INFO L87 Difference]: Start difference. First operand 353 states and 465 transitions. Second operand 12 states. [2020-08-22 18:48:13,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:48:13,795 INFO L93 Difference]: Finished difference Result 768 states and 1052 transitions. [2020-08-22 18:48:13,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-08-22 18:48:13,795 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 369 [2020-08-22 18:48:13,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:48:13,806 INFO L225 Difference]: With dead ends: 768 [2020-08-22 18:48:13,806 INFO L226 Difference]: Without dead ends: 762 [2020-08-22 18:48:13,808 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2020-08-22 18:48:13,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762 states. [2020-08-22 18:48:13,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 762 to 727. [2020-08-22 18:48:13,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 727 states. [2020-08-22 18:48:13,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 994 transitions. [2020-08-22 18:48:13,897 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 994 transitions. Word has length 369 [2020-08-22 18:48:13,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:48:13,897 INFO L479 AbstractCegarLoop]: Abstraction has 727 states and 994 transitions. [2020-08-22 18:48:13,898 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-22 18:48:13,898 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 994 transitions. [2020-08-22 18:48:13,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 599 [2020-08-22 18:48:13,904 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:48:13,905 INFO L422 BasicCegarLoop]: trace histogram [35, 35, 32, 32, 27, 27, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 11, 11, 10, 10, 8, 8, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:48:13,905 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-08-22 18:48:13,905 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:48:13,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:48:13,906 INFO L82 PathProgramCache]: Analyzing trace with hash -1058675901, now seen corresponding path program 10 times [2020-08-22 18:48:13,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:48:13,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [307151446] [2020-08-22 18:48:13,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:48:13,909 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:48:13,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:48:14,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 18:48:14,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:14,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:14,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:14,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:14,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:14,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:14,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:14,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:14,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:14,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:14,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:14,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:14,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:14,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:14,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:14,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:14,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:14,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:48:14,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:14,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:14,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:14,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:14,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:14,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:14,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:14,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:14,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-08-22 18:48:14,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:14,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:14,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:14,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:14,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:14,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:14,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:14,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:14,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:14,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:14,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:14,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:14,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:14,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:14,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:14,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:48:14,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:14,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:14,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:14,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:14,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:14,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:14,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:14,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:14,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:14,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:15,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 451 [2020-08-22 18:48:15,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:15,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:15,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:15,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:15,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:15,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:15,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:15,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:15,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:15,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:15,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:15,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:15,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:15,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:15,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:15,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:15,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:15,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:15,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:15,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:15,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:15,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:15,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:15,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:15,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:15,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:15,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:15,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:15,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:15,616 INFO L134 CoverageAnalysis]: Checked inductivity of 1327 backedges. 11 proven. 196 refuted. 0 times theorem prover too weak. 1120 trivial. 0 not checked. [2020-08-22 18:48:15,617 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [307151446] [2020-08-22 18:48:15,617 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:48:15,617 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-08-22 18:48:15,617 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124540908] [2020-08-22 18:48:15,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-08-22 18:48:15,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:48:15,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-08-22 18:48:15,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2020-08-22 18:48:15,618 INFO L87 Difference]: Start difference. First operand 727 states and 994 transitions. Second operand 18 states. [2020-08-22 18:48:16,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:48:16,638 INFO L93 Difference]: Finished difference Result 1267 states and 1913 transitions. [2020-08-22 18:48:16,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-08-22 18:48:16,639 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 598 [2020-08-22 18:48:16,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:48:16,648 INFO L225 Difference]: With dead ends: 1267 [2020-08-22 18:48:16,649 INFO L226 Difference]: Without dead ends: 542 [2020-08-22 18:48:16,657 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 379 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=250, Invalid=1472, Unknown=0, NotChecked=0, Total=1722 [2020-08-22 18:48:16,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2020-08-22 18:48:16,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 468. [2020-08-22 18:48:16,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 468 states. [2020-08-22 18:48:16,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 640 transitions. [2020-08-22 18:48:16,711 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 640 transitions. Word has length 598 [2020-08-22 18:48:16,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:48:16,711 INFO L479 AbstractCegarLoop]: Abstraction has 468 states and 640 transitions. [2020-08-22 18:48:16,711 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-08-22 18:48:16,712 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 640 transitions. [2020-08-22 18:48:16,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2020-08-22 18:48:16,717 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:48:16,717 INFO L422 BasicCegarLoop]: trace histogram [31, 31, 30, 30, 25, 24, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 10, 10, 9, 9, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:48:16,718 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-08-22 18:48:16,718 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:48:16,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:48:16,718 INFO L82 PathProgramCache]: Analyzing trace with hash -444779053, now seen corresponding path program 11 times [2020-08-22 18:48:16,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:48:16,719 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1778817577] [2020-08-22 18:48:16,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:48:16,722 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:48:16,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:16,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:48:16,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:16,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 18:48:17,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:17,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:17,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:17,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:17,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:17,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:17,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:17,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:17,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:17,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:17,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:17,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:17,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:17,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:17,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:17,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:17,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:17,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:48:17,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:17,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:17,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:17,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:17,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:17,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:17,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:17,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:17,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-08-22 18:48:17,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:17,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:17,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:17,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:17,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:17,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:17,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:17,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:17,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2020-08-22 18:48:17,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:17,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:17,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:17,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:17,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:17,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:17,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:17,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:17,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:17,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:17,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:17,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:17,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:17,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:17,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:17,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:48:17,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:17,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:17,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:17,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:17,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:17,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:17,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:17,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:17,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:17,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:18,075 INFO L134 CoverageAnalysis]: Checked inductivity of 1043 backedges. 27 proven. 167 refuted. 0 times theorem prover too weak. 849 trivial. 0 not checked. [2020-08-22 18:48:18,076 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1778817577] [2020-08-22 18:48:18,077 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:48:18,077 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-08-22 18:48:18,077 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587046061] [2020-08-22 18:48:18,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-22 18:48:18,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:48:18,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-22 18:48:18,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-08-22 18:48:18,079 INFO L87 Difference]: Start difference. First operand 468 states and 640 transitions. Second operand 16 states. [2020-08-22 18:48:18,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:48:18,760 INFO L93 Difference]: Finished difference Result 958 states and 1371 transitions. [2020-08-22 18:48:18,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-08-22 18:48:18,763 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 545 [2020-08-22 18:48:18,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:48:18,774 INFO L225 Difference]: With dead ends: 958 [2020-08-22 18:48:18,774 INFO L226 Difference]: Without dead ends: 508 [2020-08-22 18:48:18,779 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=132, Invalid=738, Unknown=0, NotChecked=0, Total=870 [2020-08-22 18:48:18,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2020-08-22 18:48:18,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 443. [2020-08-22 18:48:18,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2020-08-22 18:48:18,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 588 transitions. [2020-08-22 18:48:18,828 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 588 transitions. Word has length 545 [2020-08-22 18:48:18,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:48:18,830 INFO L479 AbstractCegarLoop]: Abstraction has 443 states and 588 transitions. [2020-08-22 18:48:18,830 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-22 18:48:18,830 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 588 transitions. [2020-08-22 18:48:18,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 599 [2020-08-22 18:48:18,835 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:48:18,836 INFO L422 BasicCegarLoop]: trace histogram [34, 34, 33, 33, 27, 27, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 11, 11, 10, 10, 7, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:48:18,836 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-08-22 18:48:18,836 INFO L427 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:48:18,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:48:18,837 INFO L82 PathProgramCache]: Analyzing trace with hash -425442147, now seen corresponding path program 12 times [2020-08-22 18:48:18,837 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:48:18,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1511600010] [2020-08-22 18:48:18,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:48:18,843 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:48:18,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:19,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:48:19,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:19,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 18:48:19,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:19,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:19,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:19,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:19,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:19,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:19,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:19,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:19,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:19,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:19,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:19,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:19,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:20,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:20,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:20,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:20,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:20,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:20,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:20,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:20,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:20,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:20,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:20,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:20,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:20,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:20,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:20,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:20,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:20,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:20,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:20,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:20,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:20,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:20,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:20,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:48:20,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:20,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:20,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:20,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:20,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:20,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:20,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:20,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:20,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:20,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:20,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:20,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:20,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:20,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:20,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:20,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:20,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:20,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-08-22 18:48:20,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:20,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:20,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:20,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:20,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:20,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:20,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:20,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:20,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:20,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:20,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:20,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:20,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:20,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:20,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:20,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:20,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:20,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:20,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:20,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:20,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:20,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:20,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:20,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:20,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:20,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:20,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:20,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:20,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:21,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2020-08-22 18:48:21,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:21,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:21,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:21,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:21,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:21,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:21,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:21,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:21,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:21,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:21,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:21,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:21,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:21,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:21,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:21,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:21,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:21,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:21,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:21,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:21,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:21,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:21,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:21,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:21,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:21,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:21,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:21,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:21,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:21,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:21,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:21,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:48:21,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:21,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:21,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:21,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:21,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:21,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:21,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:21,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:21,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:21,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:21,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:21,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:21,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:21,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:21,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:21,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:21,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:22,189 INFO L134 CoverageAnalysis]: Checked inductivity of 1318 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1318 trivial. 0 not checked. [2020-08-22 18:48:22,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1511600010] [2020-08-22 18:48:22,189 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:48:22,190 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2020-08-22 18:48:22,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256210195] [2020-08-22 18:48:22,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 40 states [2020-08-22 18:48:22,191 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:48:22,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-08-22 18:48:22,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1483, Unknown=0, NotChecked=0, Total=1560 [2020-08-22 18:48:22,192 INFO L87 Difference]: Start difference. First operand 443 states and 588 transitions. Second operand 40 states. [2020-08-22 18:48:24,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:48:24,837 INFO L93 Difference]: Finished difference Result 537 states and 728 transitions. [2020-08-22 18:48:24,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-08-22 18:48:24,838 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 598 [2020-08-22 18:48:24,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:48:24,845 INFO L225 Difference]: With dead ends: 537 [2020-08-22 18:48:24,845 INFO L226 Difference]: Without dead ends: 531 [2020-08-22 18:48:24,848 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 654 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=261, Invalid=5591, Unknown=0, NotChecked=0, Total=5852 [2020-08-22 18:48:24,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2020-08-22 18:48:24,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 451. [2020-08-22 18:48:24,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 451 states. [2020-08-22 18:48:24,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 605 transitions. [2020-08-22 18:48:24,906 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 605 transitions. Word has length 598 [2020-08-22 18:48:24,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:48:24,907 INFO L479 AbstractCegarLoop]: Abstraction has 451 states and 605 transitions. [2020-08-22 18:48:24,907 INFO L480 AbstractCegarLoop]: Interpolant automaton has 40 states. [2020-08-22 18:48:24,907 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 605 transitions. [2020-08-22 18:48:24,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2020-08-22 18:48:24,913 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:48:24,913 INFO L422 BasicCegarLoop]: trace histogram [29, 29, 28, 28, 23, 23, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 9, 9, 9, 9, 6, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:48:24,913 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-08-22 18:48:24,913 INFO L427 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:48:24,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:48:24,914 INFO L82 PathProgramCache]: Analyzing trace with hash 2053047112, now seen corresponding path program 13 times [2020-08-22 18:48:24,914 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:48:24,914 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1851831068] [2020-08-22 18:48:24,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:48:24,917 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:48:25,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:48:25,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 18:48:25,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:25,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:25,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:25,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:25,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:25,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:25,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:25,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:25,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:25,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:25,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:25,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:25,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:25,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:25,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:25,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:25,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:25,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:48:25,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:25,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:25,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:25,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:25,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:25,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:25,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:25,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:25,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-08-22 18:48:25,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:25,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:25,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:25,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:25,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:25,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:25,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:25,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:25,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:25,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:25,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:25,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:25,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:25,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:25,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2020-08-22 18:48:25,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:25,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:25,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:25,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:25,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:25,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:25,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:25,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:25,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:25,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:25,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:25,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:25,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:25,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:25,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:25,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:26,432 INFO L134 CoverageAnalysis]: Checked inductivity of 943 backedges. 57 proven. 73 refuted. 0 times theorem prover too weak. 813 trivial. 0 not checked. [2020-08-22 18:48:26,433 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1851831068] [2020-08-22 18:48:26,433 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:48:26,433 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-08-22 18:48:26,433 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899769877] [2020-08-22 18:48:26,434 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-08-22 18:48:26,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:48:26,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-08-22 18:48:26,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2020-08-22 18:48:26,435 INFO L87 Difference]: Start difference. First operand 451 states and 605 transitions. Second operand 18 states. [2020-08-22 18:48:27,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:48:27,389 INFO L93 Difference]: Finished difference Result 990 states and 1440 transitions. [2020-08-22 18:48:27,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-08-22 18:48:27,390 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 510 [2020-08-22 18:48:27,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:48:27,401 INFO L225 Difference]: With dead ends: 990 [2020-08-22 18:48:27,401 INFO L226 Difference]: Without dead ends: 557 [2020-08-22 18:48:27,408 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=196, Invalid=1210, Unknown=0, NotChecked=0, Total=1406 [2020-08-22 18:48:27,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2020-08-22 18:48:27,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 481. [2020-08-22 18:48:27,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2020-08-22 18:48:27,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 654 transitions. [2020-08-22 18:48:27,469 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 654 transitions. Word has length 510 [2020-08-22 18:48:27,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:48:27,469 INFO L479 AbstractCegarLoop]: Abstraction has 481 states and 654 transitions. [2020-08-22 18:48:27,470 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-08-22 18:48:27,470 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 654 transitions. [2020-08-22 18:48:27,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 740 [2020-08-22 18:48:27,477 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:48:27,477 INFO L422 BasicCegarLoop]: trace histogram [42, 42, 41, 41, 34, 33, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 14, 14, 12, 12, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:48:27,478 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-08-22 18:48:27,478 INFO L427 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:48:27,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:48:27,478 INFO L82 PathProgramCache]: Analyzing trace with hash -881046408, now seen corresponding path program 14 times [2020-08-22 18:48:27,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:48:27,479 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1932944362] [2020-08-22 18:48:27,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:48:27,481 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:48:27,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:27,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:48:27,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:27,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 18:48:27,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:28,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:28,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:28,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:28,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:28,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:28,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:28,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:28,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:28,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:28,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:28,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:28,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:28,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:28,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:28,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:28,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:28,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:48:28,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:28,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:28,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:28,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:28,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:28,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:28,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:28,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:28,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-08-22 18:48:28,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:28,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:28,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:28,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:28,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:28,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:28,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:28,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:28,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:28,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:28,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:28,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:28,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:28,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:28,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2020-08-22 18:48:28,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:28,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:28,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:28,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:28,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:28,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:28,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:28,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:28,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:28,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:28,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:28,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:28,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:28,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:28,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:28,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:28,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:48:28,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:28,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:28,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:28,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:28,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:28,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:28,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:28,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:28,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-08-22 18:48:28,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:28,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:29,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:29,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:29,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:29,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:29,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:29,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:29,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:29,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:29,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:29,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:29,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:29,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:29,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:29,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:29,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:29,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:29,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:29,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:29,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:29,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:29,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:29,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:29,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:29,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:29,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:29,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:29,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:29,661 INFO L134 CoverageAnalysis]: Checked inductivity of 2150 backedges. 33 proven. 192 refuted. 0 times theorem prover too weak. 1925 trivial. 0 not checked. [2020-08-22 18:48:29,661 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1932944362] [2020-08-22 18:48:29,662 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:48:29,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-08-22 18:48:29,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924969184] [2020-08-22 18:48:29,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-08-22 18:48:29,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:48:29,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-08-22 18:48:29,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2020-08-22 18:48:29,663 INFO L87 Difference]: Start difference. First operand 481 states and 654 transitions. Second operand 20 states. [2020-08-22 18:48:30,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:48:30,819 INFO L93 Difference]: Finished difference Result 789 states and 1156 transitions. [2020-08-22 18:48:30,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-08-22 18:48:30,822 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 739 [2020-08-22 18:48:30,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:48:30,832 INFO L225 Difference]: With dead ends: 789 [2020-08-22 18:48:30,832 INFO L226 Difference]: Without dead ends: 268 [2020-08-22 18:48:30,839 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 607 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=333, Invalid=2117, Unknown=0, NotChecked=0, Total=2450 [2020-08-22 18:48:30,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2020-08-22 18:48:30,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 231. [2020-08-22 18:48:30,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-08-22 18:48:30,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 305 transitions. [2020-08-22 18:48:30,892 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 305 transitions. Word has length 739 [2020-08-22 18:48:30,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:48:30,892 INFO L479 AbstractCegarLoop]: Abstraction has 231 states and 305 transitions. [2020-08-22 18:48:30,893 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-08-22 18:48:30,893 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 305 transitions. [2020-08-22 18:48:30,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 775 [2020-08-22 18:48:30,901 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:48:30,902 INFO L422 BasicCegarLoop]: trace histogram [44, 44, 43, 43, 35, 35, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 14, 14, 13, 13, 9, 9, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:48:30,902 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-08-22 18:48:30,902 INFO L427 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:48:30,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:48:30,903 INFO L82 PathProgramCache]: Analyzing trace with hash 105668077, now seen corresponding path program 15 times [2020-08-22 18:48:30,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:48:30,903 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1381864149] [2020-08-22 18:48:30,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:48:30,906 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:48:30,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:31,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:48:31,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:31,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 18:48:31,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:31,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:31,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:31,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:31,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:31,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:31,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:31,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:31,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:31,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:31,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:31,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:31,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:31,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:31,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:31,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:31,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:31,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:31,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:31,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:31,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:31,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:31,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:31,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:31,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:31,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:31,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:31,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:31,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:31,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:31,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:31,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:31,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:31,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:31,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:31,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:31,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:31,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:48:31,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:31,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:31,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:31,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:31,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:31,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:31,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:31,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:31,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:31,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:31,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:31,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:31,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:31,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:31,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:31,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:31,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:31,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-08-22 18:48:31,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:31,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:31,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:31,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:31,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:31,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:31,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:31,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:31,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:32,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:32,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:32,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:32,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2020-08-22 18:48:32,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:32,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:32,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:32,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:32,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:32,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:32,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:32,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:32,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:32,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:32,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:32,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:32,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:32,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:32,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:32,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:48:32,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:32,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:32,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:32,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:32,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:32,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:32,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:32,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:32,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 539 [2020-08-22 18:48:32,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:32,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:32,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:32,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:32,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:32,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:32,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:32,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:32,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:32,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:32,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:32,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:32,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:32,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:32,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:32,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:48:32,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:32,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:32,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:32,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:32,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:32,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:32,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:32,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:32,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:32,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:33,384 INFO L134 CoverageAnalysis]: Checked inductivity of 2229 backedges. 21 proven. 271 refuted. 0 times theorem prover too weak. 1937 trivial. 0 not checked. [2020-08-22 18:48:33,385 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1381864149] [2020-08-22 18:48:33,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:48:33,386 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-08-22 18:48:33,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816727088] [2020-08-22 18:48:33,387 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-22 18:48:33,387 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:48:33,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-22 18:48:33,387 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-08-22 18:48:33,388 INFO L87 Difference]: Start difference. First operand 231 states and 305 transitions. Second operand 16 states. [2020-08-22 18:48:34,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:48:34,030 INFO L93 Difference]: Finished difference Result 457 states and 619 transitions. [2020-08-22 18:48:34,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-08-22 18:48:34,031 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 774 [2020-08-22 18:48:34,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:48:34,037 INFO L225 Difference]: With dead ends: 457 [2020-08-22 18:48:34,037 INFO L226 Difference]: Without dead ends: 244 [2020-08-22 18:48:34,039 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=132, Invalid=738, Unknown=0, NotChecked=0, Total=870 [2020-08-22 18:48:34,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2020-08-22 18:48:34,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 231. [2020-08-22 18:48:34,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-08-22 18:48:34,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 299 transitions. [2020-08-22 18:48:34,064 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 299 transitions. Word has length 774 [2020-08-22 18:48:34,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:48:34,064 INFO L479 AbstractCegarLoop]: Abstraction has 231 states and 299 transitions. [2020-08-22 18:48:34,064 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-22 18:48:34,064 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 299 transitions. [2020-08-22 18:48:34,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2396 [2020-08-22 18:48:34,110 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:48:34,112 INFO L422 BasicCegarLoop]: trace histogram [138, 138, 133, 133, 110, 109, 69, 69, 69, 69, 69, 69, 69, 69, 69, 69, 66, 66, 66, 66, 66, 66, 66, 66, 66, 66, 44, 44, 40, 40, 28, 28, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:48:34,112 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-08-22 18:48:34,112 INFO L427 AbstractCegarLoop]: === Iteration 27 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:48:34,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:48:34,113 INFO L82 PathProgramCache]: Analyzing trace with hash 637756354, now seen corresponding path program 16 times [2020-08-22 18:48:34,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:48:34,113 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [845110083] [2020-08-22 18:48:34,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:48:34,122 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:48:34,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:36,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:48:36,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:36,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 18:48:36,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:37,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:37,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:37,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:37,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:38,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:38,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:38,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:38,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:38,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:38,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:38,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:38,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:38,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:38,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:38,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:38,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:38,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:38,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:38,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:38,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:38,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:48:38,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:38,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:38,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:38,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:38,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:38,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:38,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:38,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:38,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-08-22 18:48:38,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:38,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:38,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:38,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:38,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:38,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:38,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:38,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:38,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:38,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:38,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:38,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:38,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:38,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:38,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2020-08-22 18:48:38,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:38,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:38,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:38,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:38,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:38,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:38,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:38,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:38,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:38,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:38,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:38,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:38,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:38,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:38,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:38,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:48:38,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:38,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:38,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:38,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:38,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:38,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:38,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:38,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:38,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 592 [2020-08-22 18:48:38,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:38,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:38,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:39,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:39,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:39,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:39,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:39,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:39,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:39,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:39,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:39,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:39,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:39,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:39,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:39,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:39,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:39,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:39,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:48:39,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:39,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:39,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:39,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:39,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:39,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:39,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:39,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:39,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-08-22 18:48:39,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:39,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:39,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:39,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:39,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:39,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:39,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:39,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:39,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:39,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:39,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:39,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:39,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:39,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:39,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2020-08-22 18:48:39,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:39,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:39,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:39,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:39,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:39,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:39,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:39,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:39,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:39,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:39,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:39,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:39,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:39,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:39,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:39,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:48:39,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:39,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:39,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:39,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:39,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:39,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:39,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:39,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:39,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:39,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1191 [2020-08-22 18:48:40,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:40,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:40,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:40,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:40,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:40,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:40,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:40,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:40,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:40,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:40,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:40,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:40,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:40,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:40,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:40,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:40,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:40,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:40,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:48:40,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:40,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:40,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:40,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:40,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:40,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:40,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:40,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:40,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-08-22 18:48:40,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:40,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:40,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:40,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:40,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:40,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:40,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:40,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:40,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:40,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:40,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:40,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:40,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:40,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:40,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2020-08-22 18:48:40,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:40,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:40,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:40,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:40,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:40,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:40,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:40,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:40,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:40,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:40,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:40,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:40,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:40,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:40,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:40,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:48:40,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:40,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:40,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:40,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:40,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:40,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:40,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:40,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:40,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:40,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 592 [2020-08-22 18:48:41,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:41,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:41,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:41,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:41,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:41,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:41,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:41,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:41,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:41,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:41,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:41,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:41,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:41,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:41,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:41,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:41,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:41,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:48:41,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:41,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:41,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:41,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:41,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:41,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:41,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:41,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:41,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-08-22 18:48:41,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:41,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:41,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:41,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:41,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:41,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:41,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:41,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:41,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:41,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:41,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:41,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:41,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:41,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2020-08-22 18:48:41,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:41,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:41,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:41,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:41,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:41,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:41,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:41,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:41,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:41,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:41,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-08-22 18:48:41,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:41,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:41,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:41,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:41,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-08-22 18:48:41,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:41,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:41,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:41,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:41,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-08-22 18:48:41,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-08-22 18:48:41,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-22 18:48:41,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:41,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-08-22 18:48:41,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:48:46,426 INFO L134 CoverageAnalysis]: Checked inductivity of 25310 backedges. 562 proven. 1266 refuted. 0 times theorem prover too weak. 23482 trivial. 0 not checked. [2020-08-22 18:48:46,427 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [845110083] [2020-08-22 18:48:46,427 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:48:46,428 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-08-22 18:48:46,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349401281] [2020-08-22 18:48:46,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-08-22 18:48:46,430 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:48:46,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-08-22 18:48:46,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=399, Unknown=0, NotChecked=0, Total=462 [2020-08-22 18:48:46,430 INFO L87 Difference]: Start difference. First operand 231 states and 299 transitions. Second operand 22 states. [2020-08-22 18:48:47,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:48:47,182 INFO L93 Difference]: Finished difference Result 341 states and 458 transitions. [2020-08-22 18:48:47,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-08-22 18:48:47,183 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 2395 [2020-08-22 18:48:47,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:48:47,184 INFO L225 Difference]: With dead ends: 341 [2020-08-22 18:48:47,185 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 18:48:47,188 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 605 GetRequests, 564 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 294 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=280, Invalid=1526, Unknown=0, NotChecked=0, Total=1806 [2020-08-22 18:48:47,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 18:48:47,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 18:48:47,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 18:48:47,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 18:48:47,190 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2395 [2020-08-22 18:48:47,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:48:47,190 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 18:48:47,190 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-08-22 18:48:47,190 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 18:48:47,191 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 18:48:47,191 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-08-22 18:48:47,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 18:49:08,216 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 11 [2020-08-22 18:49:08,430 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 14 [2020-08-22 18:49:09,065 WARN L193 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 57 [2020-08-22 18:49:09,391 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 38 [2020-08-22 18:49:09,717 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 38 [2020-08-22 18:49:09,824 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 19 [2020-08-22 18:49:10,808 WARN L193 SmtUtils]: Spent 977.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 55 [2020-08-22 18:49:11,217 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 54 [2020-08-22 18:49:11,867 WARN L193 SmtUtils]: Spent 608.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 57 [2020-08-22 18:49:12,007 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 7 [2020-08-22 18:49:12,472 WARN L193 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 53 [2020-08-22 18:49:12,599 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 23 [2020-08-22 18:49:13,063 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 53 [2020-08-22 18:49:13,710 WARN L193 SmtUtils]: Spent 638.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 60 [2020-08-22 18:49:14,606 WARN L193 SmtUtils]: Spent 890.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 55 [2020-08-22 18:49:15,497 WARN L193 SmtUtils]: Spent 885.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 55 [2020-08-22 18:49:15,614 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 17 [2020-08-22 18:49:15,815 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 11 [2020-08-22 18:49:16,290 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 44 [2020-08-22 18:49:17,294 WARN L193 SmtUtils]: Spent 998.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 55 [2020-08-22 18:49:17,784 WARN L193 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 44 [2020-08-22 18:49:17,930 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 23 [2020-08-22 18:49:18,768 WARN L193 SmtUtils]: Spent 786.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 62 [2020-08-22 18:49:18,909 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 14 [2020-08-22 18:49:19,749 WARN L193 SmtUtils]: Spent 830.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 53 [2020-08-22 18:49:19,880 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 7 [2020-08-22 18:49:19,885 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-08-22 18:49:19,885 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-08-22 18:49:19,885 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-08-22 18:49:19,885 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-22 18:49:19,886 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 18:49:19,886 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-08-22 18:49:19,886 INFO L264 CegarLoopResult]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 39) the Hoare annotation is: false [2020-08-22 18:49:19,886 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 35 42) the Hoare annotation is: true [2020-08-22 18:49:19,886 INFO L264 CegarLoopResult]: At program point mainEXIT(lines 35 42) the Hoare annotation is: (<= 8 main_~x~0) [2020-08-22 18:49:19,886 INFO L264 CegarLoopResult]: At program point mainFINAL(lines 35 42) the Hoare annotation is: (<= 8 main_~x~0) [2020-08-22 18:49:19,887 INFO L264 CegarLoopResult]: At program point L39(line 39) the Hoare annotation is: false [2020-08-22 18:49:19,887 INFO L264 CegarLoopResult]: At program point L38(lines 38 40) the Hoare annotation is: (and (<= 8 main_~x~0) (<= main_~result~0 21) (<= main_~x~0 8) (<= 21 main_~result~0)) [2020-08-22 18:49:19,887 INFO L264 CegarLoopResult]: At program point L37(line 37) the Hoare annotation is: (and (<= 8 main_~x~0) (<= main_~x~0 8)) [2020-08-22 18:49:19,887 INFO L264 CegarLoopResult]: At program point L37-1(line 37) the Hoare annotation is: (and (<= 8 main_~x~0) (<= 21 |main_#t~ret4|) (<= main_~x~0 8) (<= |main_#t~ret4| 21)) [2020-08-22 18:49:19,887 INFO L264 CegarLoopResult]: At program point L38-2(lines 38 40) the Hoare annotation is: (<= 8 main_~x~0) [2020-08-22 18:49:19,887 INFO L264 CegarLoopResult]: At program point L37-2(line 37) the Hoare annotation is: (and (<= 8 main_~x~0) (<= 21 |main_#t~ret4|) (<= main_~x~0 8) (<= |main_#t~ret4| 21)) [2020-08-22 18:49:19,887 INFO L264 CegarLoopResult]: At program point L37-3(line 37) the Hoare annotation is: (and (<= 8 main_~x~0) (<= 21 |main_#t~ret4|) (<= main_~result~0 21) (<= main_~x~0 8) (<= |main_#t~ret4| 21) (<= 21 main_~result~0)) [2020-08-22 18:49:19,887 INFO L271 CegarLoopResult]: At program point fibo2ENTRY(lines 17 25) the Hoare annotation is: true [2020-08-22 18:49:19,888 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (and (or (not (<= |fibo2_#in~n| 7)) (= fibo2_~n |fibo2_#in~n|)) (not (<= |fibo2_#in~n| 1))) [2020-08-22 18:49:19,888 INFO L264 CegarLoopResult]: At program point L23-1(line 23) the Hoare annotation is: (and (or (and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|)) (not (<= |fibo2_#in~n| 3))) (or (and (<= 2 |fibo2_#t~ret2|) (<= |fibo2_#t~ret2| 2) (<= fibo2_~n 4)) (not (<= 3 |fibo2_#in~n|)) (not (<= |fibo2_#in~n| 5))) (let ((.cse0 (= fibo2_~n |fibo2_#in~n|))) (or (and (<= fibo2_~n 6) .cse0) (and .cse0 (<= 8 |fibo2_#t~ret2|) (<= |fibo2_#t~ret2| 8)) (not (<= |fibo2_#in~n| 7)))) (not (<= |fibo2_#in~n| 1))) [2020-08-22 18:49:19,888 INFO L264 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: (and (or (not (<= |fibo2_#in~n| 5)) (and (= fibo2_~n |fibo2_#in~n|) (<= |fibo2_#in~n| 1) (< 0 fibo2_~n))) (or (not (<= |fibo2_#in~n| 7)) (not (<= 5 |fibo2_#in~n|)))) [2020-08-22 18:49:19,888 INFO L264 CegarLoopResult]: At program point L23-2(line 23) the Hoare annotation is: (and (or (and (<= |fibo2_#t~ret2| 1) (<= 1 |fibo2_#t~ret2|)) (not (<= |fibo2_#in~n| 3))) (or (and (<= 2 |fibo2_#t~ret2|) (<= |fibo2_#t~ret2| 2) (<= fibo2_~n 4)) (not (<= 3 |fibo2_#in~n|)) (not (<= |fibo2_#in~n| 5))) (let ((.cse0 (= fibo2_~n |fibo2_#in~n|))) (or (and (<= fibo2_~n 6) .cse0) (and .cse0 (<= 8 |fibo2_#t~ret2|) (<= |fibo2_#t~ret2| 8)) (not (<= |fibo2_#in~n| 7)))) (not (<= |fibo2_#in~n| 1))) [2020-08-22 18:49:19,888 INFO L264 CegarLoopResult]: At program point L20(lines 20 24) the Hoare annotation is: (and (or (not (<= |fibo2_#in~n| 3)) (< 0 fibo2_~n)) (or (not (<= |fibo2_#in~n| 7)) (= fibo2_~n |fibo2_#in~n|))) [2020-08-22 18:49:19,888 INFO L264 CegarLoopResult]: At program point L23-3(line 23) the Hoare annotation is: (let ((.cse3 (<= 3 fibo2_~n)) (.cse2 (<= |fibo2_#in~n| 3)) (.cse1 (+ |fibo2_#t~ret3| |fibo2_#t~ret2|))) (and (let ((.cse0 (= fibo2_~n |fibo2_#in~n|))) (or (not (<= |fibo2_#in~n| 7)) (and (<= |fibo2_#in~n| 6) .cse0) (and (<= 13 .cse1) (<= .cse1 13) .cse0 (<= 8 |fibo2_#t~ret2|) (<= |fibo2_#t~ret2| 8)))) (or (not (<= 3 |fibo2_#in~n|)) (not (<= |fibo2_#in~n| 5)) (and .cse2 .cse3) (and (<= .cse1 3) (<= 2 |fibo2_#t~ret2|) (<= |fibo2_#in~n| 4) (<= |fibo2_#t~ret2| 2) (<= 3 .cse1))) (let ((.cse4 (<= |fibo2_#t~ret2| 1)) (.cse5 (<= 1 |fibo2_#t~ret2|))) (or (and .cse2 (<= .cse1 2) .cse3 .cse4 .cse5 (<= 2 .cse1)) (not .cse2) (and (<= 1 .cse1) (<= .cse1 1) .cse4 .cse5 (<= |fibo2_#in~n| 2)))) (not (<= |fibo2_#in~n| 1)))) [2020-08-22 18:49:19,889 INFO L264 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: (and (or (not (<= |fibo2_#in~n| 5)) (<= |fibo2_#in~n| 1)) (or (not (<= |fibo2_#in~n| 7)) (not (<= 5 |fibo2_#in~n|))) (or (and (= fibo2_~n |fibo2_#in~n|) (<= |fibo2_#in~n| 0)) (not (<= |fibo2_#in~n| 3)))) [2020-08-22 18:49:19,889 INFO L264 CegarLoopResult]: At program point L23-4(line 23) the Hoare annotation is: (let ((.cse3 (<= 3 fibo2_~n)) (.cse2 (<= |fibo2_#in~n| 3)) (.cse1 (+ |fibo2_#t~ret3| |fibo2_#t~ret2|))) (and (let ((.cse0 (= fibo2_~n |fibo2_#in~n|))) (or (not (<= |fibo2_#in~n| 7)) (and (<= |fibo2_#in~n| 6) .cse0) (and (<= 13 .cse1) (<= .cse1 13) .cse0 (<= 8 |fibo2_#t~ret2|) (<= |fibo2_#t~ret2| 8)))) (or (not (<= 3 |fibo2_#in~n|)) (not (<= |fibo2_#in~n| 5)) (and .cse2 .cse3) (and (<= .cse1 3) (<= 2 |fibo2_#t~ret2|) (<= |fibo2_#in~n| 4) (<= |fibo2_#t~ret2| 2) (<= 3 .cse1))) (let ((.cse4 (<= |fibo2_#t~ret2| 1)) (.cse5 (<= 1 |fibo2_#t~ret2|))) (or (and .cse2 (<= .cse1 2) .cse3 .cse4 .cse5 (<= 2 .cse1)) (not .cse2) (and (<= 1 .cse1) (<= .cse1 1) .cse4 .cse5 (<= |fibo2_#in~n| 2)))) (not (<= |fibo2_#in~n| 1)))) [2020-08-22 18:49:19,889 INFO L264 CegarLoopResult]: At program point L18(lines 18 24) the Hoare annotation is: (or (not (<= |fibo2_#in~n| 7)) (= fibo2_~n |fibo2_#in~n|)) [2020-08-22 18:49:19,889 INFO L264 CegarLoopResult]: At program point L23-5(line 23) the Hoare annotation is: (let ((.cse1 (not (<= |fibo2_#in~n| 5))) (.cse2 (+ |fibo2_#t~ret3| |fibo2_#t~ret2|)) (.cse0 (<= |fibo2_#in~n| 3))) (and (or .cse0 .cse1 (and (<= .cse2 3) (<= 2 |fibo2_#t~ret2|) (<= 3 |fibo2_#res|) (<= |fibo2_#t~ret2| 2) (<= |fibo2_#res| 3) (<= 3 .cse2))) (let ((.cse3 (= fibo2_~n |fibo2_#in~n|))) (or (not (<= |fibo2_#in~n| 7)) (and (<= |fibo2_#in~n| 6) .cse3) (and (<= 13 .cse2) (<= 13 |fibo2_#res|) (<= |fibo2_#res| 13) (<= .cse2 13) .cse3 (<= 8 |fibo2_#t~ret2|) (<= |fibo2_#t~ret2| 8)))) (or (<= |fibo2_#in~n| 4) .cse1) (let ((.cse4 (<= |fibo2_#t~ret2| 1)) (.cse5 (<= 1 |fibo2_#t~ret2|))) (or (and (<= 1 .cse2) (<= .cse2 1) (<= 1 |fibo2_#res|) .cse4 (<= |fibo2_#res| 1) .cse5 (<= |fibo2_#in~n| 2)) (and (<= .cse2 2) (<= |fibo2_#res| 2) (<= 2 |fibo2_#res|) (<= 3 fibo2_~n) .cse4 .cse5 (<= 2 .cse2)) (not .cse0))) (not (<= |fibo2_#in~n| 1)))) [2020-08-22 18:49:19,889 INFO L264 CegarLoopResult]: At program point L23-6(line 23) the Hoare annotation is: (let ((.cse4 (<= |fibo2_#t~ret2| 1)) (.cse5 (<= 1 |fibo2_#t~ret2|)) (.cse6 (<= |fibo2_#in~n| 3)) (.cse3 (= fibo2_~n |fibo2_#in~n|))) (let ((.cse0 (and .cse6 (<= 3 fibo2_~n) .cse3)) (.cse1 (and (<= 1 |fibo2_#res|) .cse4 (<= |fibo2_#res| 1) .cse3 .cse5 (<= |fibo2_#in~n| 2))) (.cse2 (not .cse6))) (and (or .cse0 .cse1 .cse2) (or (and (<= 13 |fibo2_#res|) (<= |fibo2_#res| 13) .cse3 (<= 8 |fibo2_#t~ret2|) (<= |fibo2_#t~ret2| 8)) (not (<= |fibo2_#in~n| 7)) (and (<= |fibo2_#in~n| 6) .cse3)) (or (and (<= 2 |fibo2_#t~ret2|) (<= |fibo2_#in~n| 4) (<= 3 |fibo2_#res|) (<= |fibo2_#t~ret2| 2) (<= |fibo2_#res| 3)) .cse0 (not (<= 3 |fibo2_#in~n|)) (not (<= |fibo2_#in~n| 5))) (or .cse1 (and (<= |fibo2_#res| 2) (<= 2 |fibo2_#res|) .cse4 .cse5) .cse2) (not (<= |fibo2_#in~n| 1))))) [2020-08-22 18:49:19,889 INFO L264 CegarLoopResult]: At program point fibo2FINAL(lines 17 25) the Hoare annotation is: (let ((.cse9 (<= |fibo2_#in~n| 1)) (.cse10 (< 0 fibo2_~n)) (.cse12 (<= 1 |fibo2_#res|)) (.cse13 (<= |fibo2_#res| 1)) (.cse2 (= fibo2_~n |fibo2_#in~n|)) (.cse11 (<= |fibo2_#in~n| 3))) (let ((.cse1 (and .cse11 (<= 3 fibo2_~n))) (.cse3 (and .cse12 .cse13 .cse2 (<= 2 |fibo2_#in~n|) (<= |fibo2_#in~n| 2))) (.cse7 (and .cse12 .cse13 .cse9 .cse10)) (.cse5 (<= |fibo2_#in~n| 0)) (.cse6 (not .cse11)) (.cse0 (not (<= |fibo2_#in~n| 5))) (.cse4 (and .cse2 .cse9 .cse10)) (.cse8 (not .cse9))) (and (or (not (<= 3 |fibo2_#in~n|)) (and (<= |fibo2_#res| 3) (<= 3 |fibo2_#res|)) .cse0 .cse1) (or (and (<= 13 |fibo2_#res|) (<= |fibo2_#res| 13) .cse2) (not (<= |fibo2_#in~n| 7)) (and (<= |fibo2_#in~n| 6) .cse2)) (or .cse3 .cse1 .cse4 .cse5 .cse6) (or .cse7 .cse5 .cse8) (or .cse3 .cse7 (and (<= |fibo2_#res| 2) (<= 2 |fibo2_#res|)) .cse5 .cse6) (or (<= |fibo2_#in~n| 4) .cse0) (or .cse4 (and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|)) .cse8)))) [2020-08-22 18:49:19,890 INFO L264 CegarLoopResult]: At program point fibo2EXIT(lines 17 25) the Hoare annotation is: (let ((.cse9 (<= |fibo2_#in~n| 1)) (.cse10 (< 0 fibo2_~n)) (.cse12 (<= 1 |fibo2_#res|)) (.cse13 (<= |fibo2_#res| 1)) (.cse2 (= fibo2_~n |fibo2_#in~n|)) (.cse11 (<= |fibo2_#in~n| 3))) (let ((.cse1 (and .cse11 (<= 3 fibo2_~n))) (.cse3 (and .cse12 .cse13 .cse2 (<= 2 |fibo2_#in~n|) (<= |fibo2_#in~n| 2))) (.cse7 (and .cse12 .cse13 .cse9 .cse10)) (.cse5 (<= |fibo2_#in~n| 0)) (.cse6 (not .cse11)) (.cse0 (not (<= |fibo2_#in~n| 5))) (.cse4 (and .cse2 .cse9 .cse10)) (.cse8 (not .cse9))) (and (or (not (<= 3 |fibo2_#in~n|)) (and (<= |fibo2_#res| 3) (<= 3 |fibo2_#res|)) .cse0 .cse1) (or (and (<= 13 |fibo2_#res|) (<= |fibo2_#res| 13) .cse2) (not (<= |fibo2_#in~n| 7)) (and (<= |fibo2_#in~n| 6) .cse2)) (or .cse3 .cse1 .cse4 .cse5 .cse6) (or .cse7 .cse5 .cse8) (or .cse3 .cse7 (and (<= |fibo2_#res| 2) (<= 2 |fibo2_#res|)) .cse5 .cse6) (or (<= |fibo2_#in~n| 4) .cse0) (or .cse4 (and (<= |fibo2_#res| 0) (<= 0 |fibo2_#res|)) .cse8)))) [2020-08-22 18:49:19,890 INFO L271 CegarLoopResult]: At program point fibo1ENTRY(lines 7 15) the Hoare annotation is: true [2020-08-22 18:49:19,890 INFO L264 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: (and (or (not (<= |fibo1_#in~n| 8)) (= fibo1_~n |fibo1_#in~n|)) (not (<= |fibo1_#in~n| 2))) [2020-08-22 18:49:19,890 INFO L264 CegarLoopResult]: At program point L13-1(line 13) the Hoare annotation is: (let ((.cse3 (<= 4 |fibo1_#in~n|)) (.cse4 (= fibo1_~n |fibo1_#in~n|)) (.cse5 (<= |fibo1_#in~n| 4))) (let ((.cse0 (not .cse5)) (.cse1 (and (<= |fibo1_#in~n| 3) (<= |fibo1_#t~ret0| 1) (<= 1 |fibo1_#t~ret0|) .cse4 (<= 3 |fibo1_#in~n|))) (.cse2 (and .cse3 .cse4 .cse5))) (and (or (and (<= 2 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 2)) .cse0 .cse1) (or (and (<= |fibo1_#in~n| 5) (<= 3 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 3)) (not (<= |fibo1_#in~n| 6)) .cse2 (not .cse3)) (or (not (<= |fibo1_#in~n| 8)) (and .cse4 (<= |fibo1_#in~n| 7)) (and (<= 13 |fibo1_#t~ret0|) .cse4 (<= |fibo1_#t~ret0| 13))) (or .cse0 .cse1 .cse2)))) [2020-08-22 18:49:19,890 INFO L264 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: (and (or (and (= fibo1_~n |fibo1_#in~n|) (< 0 fibo1_~n)) (not (<= |fibo1_#in~n| 2))) (or (not (<= |fibo1_#in~n| 8)) (not (<= 4 |fibo1_#in~n|))) (or (not (<= 2 |fibo1_#in~n|)) (not (<= |fibo1_#in~n| 4)))) [2020-08-22 18:49:19,890 INFO L264 CegarLoopResult]: At program point L13-2(line 13) the Hoare annotation is: (let ((.cse3 (<= 4 |fibo1_#in~n|)) (.cse4 (= fibo1_~n |fibo1_#in~n|)) (.cse5 (<= |fibo1_#in~n| 4))) (let ((.cse0 (not .cse5)) (.cse1 (and (<= |fibo1_#in~n| 3) (<= |fibo1_#t~ret0| 1) (<= 1 |fibo1_#t~ret0|) .cse4 (<= 3 |fibo1_#in~n|))) (.cse2 (and .cse3 .cse4 .cse5))) (and (or (and (<= 2 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 2)) .cse0 .cse1) (or (and (<= |fibo1_#in~n| 5) (<= 3 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 3)) (not (<= |fibo1_#in~n| 6)) .cse2 (not .cse3)) (or (not (<= |fibo1_#in~n| 8)) (and .cse4 (<= |fibo1_#in~n| 7)) (and (<= 13 |fibo1_#t~ret0|) .cse4 (<= |fibo1_#t~ret0| 13))) (or .cse0 .cse1 .cse2)))) [2020-08-22 18:49:19,891 INFO L264 CegarLoopResult]: At program point fibo1FINAL(lines 7 15) the Hoare annotation is: (let ((.cse1 (<= |fibo1_#in~n| 4)) (.cse2 (not (<= |fibo1_#in~n| 2)))) (and (let ((.cse0 (= fibo1_~n |fibo1_#in~n|))) (or (not (<= |fibo1_#in~n| 8)) (and .cse0 (<= |fibo1_#in~n| 7)) (and (<= |fibo1_#res| 21) (<= 21 |fibo1_#res|) .cse0))) (or (not (<= |fibo1_#in~n| 6)) (and (<= |fibo1_#in~n| 5) (<= 5 |fibo1_#res|) (<= |fibo1_#res| 5)) .cse1) (or (not (<= 2 |fibo1_#in~n|)) (and (<= |fibo1_#in~n| 3) (<= 2 |fibo1_#res|) (<= |fibo1_#res| 2)) (not .cse1) (and (<= |fibo1_#res| 3) (<= 3 |fibo1_#res|) (<= 4 |fibo1_#in~n|))) (or (<= |fibo1_#in~n| 0) (and (<= |fibo1_#res| 1) (<= 1 |fibo1_#res|)) .cse2) (or (and (<= 0 |fibo1_#res|) (<= |fibo1_#res| 0)) .cse2 (< 0 fibo1_~n)))) [2020-08-22 18:49:19,891 INFO L264 CegarLoopResult]: At program point L10(lines 10 14) the Hoare annotation is: (and (or (not (<= |fibo1_#in~n| 8)) (= fibo1_~n |fibo1_#in~n|)) (or (not (<= |fibo1_#in~n| 1)) (< 0 fibo1_~n))) [2020-08-22 18:49:19,891 INFO L264 CegarLoopResult]: At program point L13-3(line 13) the Hoare annotation is: (let ((.cse2 (+ |fibo1_#t~ret1| |fibo1_#t~ret0|))) (let ((.cse1 (<= |fibo1_#in~n| 4)) (.cse3 (and (<= |fibo1_#in~n| 3) (<= |fibo1_#t~ret0| 1) (<= .cse2 2) (<= 1 |fibo1_#t~ret0|) (<= 2 .cse2))) (.cse0 (not (<= |fibo1_#in~n| 6)))) (and (or .cse0 (and .cse1 (<= 3 |fibo1_#in~n|)) (and (<= .cse2 5) (<= 3 |fibo1_#t~ret0|) (<= 5 .cse2) (<= |fibo1_#t~ret0| 3))) (or (not .cse1) (and (<= .cse2 3) (<= 2 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 2) (<= 3 .cse2)) .cse3) (or (<= 4 |fibo1_#in~n|) .cse3) (or (<= |fibo1_#in~n| 5) .cse0) (let ((.cse4 (= fibo1_~n |fibo1_#in~n|))) (or (not (<= |fibo1_#in~n| 8)) (and .cse4 (<= |fibo1_#in~n| 7)) (and (<= 21 .cse2) (<= 13 |fibo1_#t~ret0|) .cse4 (<= .cse2 21) (<= |fibo1_#t~ret0| 13))))))) [2020-08-22 18:49:19,891 INFO L264 CegarLoopResult]: At program point L9(line 9) the Hoare annotation is: (and (or (not (<= |fibo1_#in~n| 8)) (not (<= 4 |fibo1_#in~n|))) (or (not (<= |fibo1_#in~n| 4)) (and (<= |fibo1_#in~n| 0) (= fibo1_~n |fibo1_#in~n|)))) [2020-08-22 18:49:19,891 INFO L264 CegarLoopResult]: At program point L13-4(line 13) the Hoare annotation is: (let ((.cse2 (+ |fibo1_#t~ret1| |fibo1_#t~ret0|))) (let ((.cse1 (<= |fibo1_#in~n| 4)) (.cse3 (and (<= |fibo1_#in~n| 3) (<= |fibo1_#t~ret0| 1) (<= .cse2 2) (<= 1 |fibo1_#t~ret0|) (<= 2 .cse2))) (.cse0 (not (<= |fibo1_#in~n| 6)))) (and (or .cse0 (and .cse1 (<= 3 |fibo1_#in~n|)) (and (<= .cse2 5) (<= 3 |fibo1_#t~ret0|) (<= 5 .cse2) (<= |fibo1_#t~ret0| 3))) (or (not .cse1) (and (<= .cse2 3) (<= 2 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 2) (<= 3 .cse2)) .cse3) (or (<= 4 |fibo1_#in~n|) .cse3) (or (<= |fibo1_#in~n| 5) .cse0) (let ((.cse4 (= fibo1_~n |fibo1_#in~n|))) (or (not (<= |fibo1_#in~n| 8)) (and .cse4 (<= |fibo1_#in~n| 7)) (and (<= 21 .cse2) (<= 13 |fibo1_#t~ret0|) .cse4 (<= .cse2 21) (<= |fibo1_#t~ret0| 13))))))) [2020-08-22 18:49:19,891 INFO L264 CegarLoopResult]: At program point L8(lines 8 14) the Hoare annotation is: (or (not (<= |fibo1_#in~n| 8)) (= fibo1_~n |fibo1_#in~n|)) [2020-08-22 18:49:19,891 INFO L264 CegarLoopResult]: At program point L13-5(line 13) the Hoare annotation is: (let ((.cse1 (<= |fibo1_#in~n| 4)) (.cse0 (+ |fibo1_#t~ret1| |fibo1_#t~ret0|))) (and (or (and (<= |fibo1_#in~n| 3) (<= 2 |fibo1_#res|) (<= |fibo1_#t~ret0| 1) (<= .cse0 2) (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#res| 2) (<= 2 .cse0)) (not .cse1) (and (<= |fibo1_#res| 3) (<= .cse0 3) (<= 3 |fibo1_#res|) (<= 2 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 2) (<= 4 |fibo1_#in~n|) (<= 3 .cse0))) (not (<= |fibo1_#in~n| 2)) (or (not (<= |fibo1_#in~n| 6)) .cse1 (and (<= .cse0 5) (<= |fibo1_#in~n| 5) (<= 3 |fibo1_#t~ret0|) (<= 5 |fibo1_#res|) (<= |fibo1_#res| 5) (<= 5 .cse0) (<= |fibo1_#t~ret0| 3))) (let ((.cse2 (= fibo1_~n |fibo1_#in~n|))) (or (not (<= |fibo1_#in~n| 8)) (and .cse2 (<= |fibo1_#in~n| 7)) (and (<= |fibo1_#res| 21) (<= 21 |fibo1_#res|) (<= 21 .cse0) (<= 13 |fibo1_#t~ret0|) .cse2 (<= .cse0 21) (<= |fibo1_#t~ret0| 13)))))) [2020-08-22 18:49:19,892 INFO L264 CegarLoopResult]: At program point L13-6(line 13) the Hoare annotation is: (let ((.cse0 (and (<= |fibo1_#in~n| 3) (<= 2 |fibo1_#res|) (<= |fibo1_#t~ret0| 1) (<= 1 |fibo1_#t~ret0|) (<= |fibo1_#res| 2))) (.cse1 (<= |fibo1_#in~n| 4))) (and (or (and (<= |fibo1_#res| 3) (<= 3 |fibo1_#res|) (<= 2 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 2)) .cse0 (not .cse1)) (or .cse0 (<= 4 |fibo1_#in~n|)) (not (<= |fibo1_#in~n| 2)) (or (and (<= |fibo1_#in~n| 5) (<= 3 |fibo1_#t~ret0|) (<= 5 |fibo1_#res|) (<= |fibo1_#res| 5) (<= |fibo1_#t~ret0| 3)) (not (<= |fibo1_#in~n| 6)) .cse1) (let ((.cse2 (= fibo1_~n |fibo1_#in~n|))) (or (not (<= |fibo1_#in~n| 8)) (and .cse2 (<= |fibo1_#in~n| 7)) (and (<= |fibo1_#res| 21) (<= 21 |fibo1_#res|) (<= 13 |fibo1_#t~ret0|) .cse2 (<= |fibo1_#t~ret0| 13)))))) [2020-08-22 18:49:19,892 INFO L264 CegarLoopResult]: At program point fibo1EXIT(lines 7 15) the Hoare annotation is: (let ((.cse1 (<= |fibo1_#in~n| 4)) (.cse2 (not (<= |fibo1_#in~n| 2)))) (and (let ((.cse0 (= fibo1_~n |fibo1_#in~n|))) (or (not (<= |fibo1_#in~n| 8)) (and .cse0 (<= |fibo1_#in~n| 7)) (and (<= |fibo1_#res| 21) (<= 21 |fibo1_#res|) .cse0))) (or (not (<= |fibo1_#in~n| 6)) (and (<= |fibo1_#in~n| 5) (<= 5 |fibo1_#res|) (<= |fibo1_#res| 5)) .cse1) (or (not (<= 2 |fibo1_#in~n|)) (and (<= |fibo1_#in~n| 3) (<= 2 |fibo1_#res|) (<= |fibo1_#res| 2)) (not .cse1) (and (<= |fibo1_#res| 3) (<= 3 |fibo1_#res|) (<= 4 |fibo1_#in~n|))) (or (<= |fibo1_#in~n| 0) (and (<= |fibo1_#res| 1) (<= 1 |fibo1_#res|)) .cse2) (or (and (<= 0 |fibo1_#res|) (<= |fibo1_#res| 0)) .cse2 (< 0 fibo1_~n)))) [2020-08-22 18:49:19,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 06:49:19 BoogieIcfgContainer [2020-08-22 18:49:19,916 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 18:49:19,917 INFO L168 Benchmark]: Toolchain (without parser) took 81596.10 ms. Allocated memory was 142.1 MB in the beginning and 2.8 GB in the end (delta: 2.6 GB). Free memory was 106.1 MB in the beginning and 744.2 MB in the end (delta: -638.1 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2020-08-22 18:49:19,918 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 142.1 MB. Free memory was 124.6 MB in the beginning and 124.2 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-08-22 18:49:19,918 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.32 ms. Allocated memory is still 142.1 MB. Free memory was 105.7 MB in the beginning and 95.8 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-08-22 18:49:19,919 INFO L168 Benchmark]: Boogie Preprocessor took 97.38 ms. Allocated memory was 142.1 MB in the beginning and 203.4 MB in the end (delta: 61.3 MB). Free memory was 95.8 MB in the beginning and 182.3 MB in the end (delta: -86.5 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2020-08-22 18:49:19,920 INFO L168 Benchmark]: RCFGBuilder took 278.72 ms. Allocated memory is still 203.4 MB. Free memory was 182.3 MB in the beginning and 167.8 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. [2020-08-22 18:49:19,920 INFO L168 Benchmark]: TraceAbstraction took 80944.38 ms. Allocated memory was 203.4 MB in the beginning and 2.8 GB in the end (delta: 2.6 GB). Free memory was 167.8 MB in the beginning and 744.2 MB in the end (delta: -576.4 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2020-08-22 18:49:19,923 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 142.1 MB. Free memory was 124.6 MB in the beginning and 124.2 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 270.32 ms. Allocated memory is still 142.1 MB. Free memory was 105.7 MB in the beginning and 95.8 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 97.38 ms. Allocated memory was 142.1 MB in the beginning and 203.4 MB in the end (delta: 61.3 MB). Free memory was 95.8 MB in the beginning and 182.3 MB in the end (delta: -86.5 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 278.72 ms. Allocated memory is still 203.4 MB. Free memory was 182.3 MB in the beginning and 167.8 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 80944.38 ms. Allocated memory was 203.4 MB in the beginning and 2.8 GB in the end (delta: 2.6 GB). Free memory was 167.8 MB in the beginning and 744.2 MB in the end (delta: -576.4 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 39]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ProcedureContractResult [Line: 35]: Procedure Contract for main Derived contract for procedure main: 8 <= x - ProcedureContractResult [Line: 17]: Procedure Contract for fibo2 Derived contract for procedure fibo2: ((((((((!(3 <= \old(n)) || (\result <= 3 && 3 <= \result)) || !(\old(n) <= 5)) || (\old(n) <= 3 && 3 <= n)) && ((((13 <= \result && \result <= 13) && n == \old(n)) || !(\old(n) <= 7)) || (\old(n) <= 6 && n == \old(n)))) && ((((((((1 <= \result && \result <= 1) && n == \old(n)) && 2 <= \old(n)) && \old(n) <= 2) || (\old(n) <= 3 && 3 <= n)) || ((n == \old(n) && \old(n) <= 1) && 0 < n)) || \old(n) <= 0) || !(\old(n) <= 3))) && (((((1 <= \result && \result <= 1) && \old(n) <= 1) && 0 < n) || \old(n) <= 0) || !(\old(n) <= 1))) && ((((((((1 <= \result && \result <= 1) && n == \old(n)) && 2 <= \old(n)) && \old(n) <= 2) || (((1 <= \result && \result <= 1) && \old(n) <= 1) && 0 < n)) || (\result <= 2 && 2 <= \result)) || \old(n) <= 0) || !(\old(n) <= 3))) && (\old(n) <= 4 || !(\old(n) <= 5))) && ((((n == \old(n) && \old(n) <= 1) && 0 < n) || (\result <= 0 && 0 <= \result)) || !(\old(n) <= 1)) - ProcedureContractResult [Line: 7]: Procedure Contract for fibo1 Derived contract for procedure fibo1: (((((!(\old(n) <= 8) || (n == \old(n) && \old(n) <= 7)) || ((\result <= 21 && 21 <= \result) && n == \old(n))) && ((!(\old(n) <= 6) || ((\old(n) <= 5 && 5 <= \result) && \result <= 5)) || \old(n) <= 4)) && (((!(2 <= \old(n)) || ((\old(n) <= 3 && 2 <= \result) && \result <= 2)) || !(\old(n) <= 4)) || ((\result <= 3 && 3 <= \result) && 4 <= \old(n)))) && ((\old(n) <= 0 || (\result <= 1 && 1 <= \result)) || !(\old(n) <= 2))) && (((0 <= \result && \result <= 0) || !(\old(n) <= 2)) || 0 < n) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 48.1s, OverallIterations: 27, TraceHistogramMax: 138, AutomataDifference: 14.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 32.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1469 SDtfs, 2035 SDslu, 12476 SDs, 0 SdLazy, 10315 SolverSat, 993 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2958 GetRequests, 2384 SyntacticMatches, 0 SemanticMatches, 574 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3200 ImplicationChecksByTransitivity, 7.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=727occurred in iteration=20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 27 MinimizatonAttempts, 682 StatesRemovedByMinimization, 23 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 45 LocationsWithAnnotation, 11455 PreInvPairs, 32661 NumberOfFragments, 2208 HoareAnnotationTreeSize, 11455 FomulaSimplifications, 1609417 FormulaSimplificationTreeSizeReduction, 20.6s HoareSimplificationTime, 45 FomulaSimplificationsInter, 242950 FormulaSimplificationTreeSizeReductionInter, 11.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...