/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 --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_8-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 20:32:58,222 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 20:32:58,225 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 20:32:58,266 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 20:32:58,267 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 20:32:58,276 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 20:32:58,278 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 20:32:58,282 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 20:32:58,284 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 20:32:58,287 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 20:32:58,288 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 20:32:58,289 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 20:32:58,289 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 20:32:58,292 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 20:32:58,294 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 20:32:58,295 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 20:32:58,297 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 20:32:58,298 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 20:32:58,299 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 20:32:58,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 20:32:58,309 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 20:32:58,310 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 20:32:58,311 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 20:32:58,311 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 20:32:58,323 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 20:32:58,324 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 20:32:58,324 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 20:32:58,331 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 20:32:58,332 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 20:32:58,332 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-21 20:32:58,335 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-21 20:32:58,335 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-21 20:32:58,336 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-21 20:32:58,337 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-21 20:32:58,340 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-21 20:32:58,340 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-21 20:32:58,341 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-21 20:32:58,341 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-21 20:32:58,341 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 20:32:58,342 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 20:32:58,342 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 20:32:58,344 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-21 20:32:58,377 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 20:32:58,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 20:32:58,379 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 20:32:58,379 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 20:32:58,379 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 20:32:58,380 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 20:32:58,380 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 20:32:58,380 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 20:32:58,380 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 20:32:58,380 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 20:32:58,381 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 20:32:58,381 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 20:32:58,381 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 20:32:58,381 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 20:32:58,381 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 20:32:58,382 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 20:32:58,382 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 20:32:58,382 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 20:32:58,382 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 20:32:58,382 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 20:32:58,382 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 20:32:58,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 20:32:58,383 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 20:32:58,383 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 20:32:58,383 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 20:32:58,383 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 20:32:58,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 20:32:58,384 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 20:32:58,384 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 20:32:58,384 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true; [2020-08-21 20:32:58,699 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 20:32:58,711 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 20:32:58,715 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 20:32:58,716 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 20:32:58,716 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 20:32:58,717 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_8-1.c [2020-08-21 20:32:58,778 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2b8b9b81d/579e35f6e175430da6bb25ff5b69e829/FLAG5a25a49b1 [2020-08-21 20:32:59,233 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 20:32:59,234 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_2calls_8-1.c [2020-08-21 20:32:59,241 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2b8b9b81d/579e35f6e175430da6bb25ff5b69e829/FLAG5a25a49b1 [2020-08-21 20:32:59,625 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2b8b9b81d/579e35f6e175430da6bb25ff5b69e829 [2020-08-21 20:32:59,635 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 20:32:59,638 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 20:32:59,641 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 20:32:59,641 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 20:32:59,645 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 20:32:59,646 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 08:32:59" (1/1) ... [2020-08-21 20:32:59,649 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@522d3de7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:32:59, skipping insertion in model container [2020-08-21 20:32:59,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 08:32:59" (1/1) ... [2020-08-21 20:32:59,658 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 20:32:59,676 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 20:32:59,865 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 20:32:59,874 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 20:32:59,895 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 20:32:59,912 INFO L208 MainTranslator]: Completed translation [2020-08-21 20:32:59,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:32:59 WrapperNode [2020-08-21 20:32:59,914 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 20:32:59,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 20:32:59,915 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 20:32:59,915 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 20:32:59,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:32:59" (1/1) ... [2020-08-21 20:32:59,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:32:59" (1/1) ... [2020-08-21 20:33:00,030 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:32:59" (1/1) ... [2020-08-21 20:33:00,030 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:32:59" (1/1) ... [2020-08-21 20:33:00,035 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:32:59" (1/1) ... [2020-08-21 20:33:00,039 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:32:59" (1/1) ... [2020-08-21 20:33:00,044 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:32:59" (1/1) ... [2020-08-21 20:33:00,052 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 20:33:00,053 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 20:33:00,053 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 20:33:00,053 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 20:33:00,054 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:32:59" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-21 20:33:00,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 20:33:00,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 20:33:00,114 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-08-21 20:33:00,114 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-08-21 20:33:00,114 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 20:33:00,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 20:33:00,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 20:33:00,115 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-08-21 20:33:00,115 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-08-21 20:33:00,115 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 20:33:00,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 20:33:00,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 20:33:00,309 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 20:33:00,309 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-21 20:33:00,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 08:33:00 BoogieIcfgContainer [2020-08-21 20:33:00,313 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 20:33:00,315 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 20:33:00,315 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 20:33:00,318 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 20:33:00,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 08:32:59" (1/3) ... [2020-08-21 20:33:00,319 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e7db92f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 08:33:00, skipping insertion in model container [2020-08-21 20:33:00,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 08:32:59" (2/3) ... [2020-08-21 20:33:00,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e7db92f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 08:33:00, skipping insertion in model container [2020-08-21 20:33:00,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 08:33:00" (3/3) ... [2020-08-21 20:33:00,322 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_8-1.c [2020-08-21 20:33:00,333 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 20:33:00,341 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 20:33:00,359 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 20:33:00,385 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 20:33:00,385 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 20:33:00,385 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 20:33:00,385 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 20:33:00,385 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 20:33:00,385 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 20:33:00,385 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 20:33:00,386 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 20:33:00,401 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-08-21 20:33:00,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-08-21 20:33:00,407 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:33:00,408 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 20:33:00,408 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:33:00,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:33:00,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1464461757, now seen corresponding path program 1 times [2020-08-21 20:33:00,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:33:00,424 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2003727374] [2020-08-21 20:33:00,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:33:00,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:00,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:33:00,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:00,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 20:33:00,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:00,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 20:33:00,612 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2003727374] [2020-08-21 20:33:00,620 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 20:33:00,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 20:33:00,625 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573411970] [2020-08-21 20:33:00,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 20:33:00,635 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:33:00,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 20:33:00,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-21 20:33:00,661 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 5 states. [2020-08-21 20:33:00,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:33:00,793 INFO L93 Difference]: Finished difference Result 44 states and 53 transitions. [2020-08-21 20:33:00,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 20:33:00,797 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-08-21 20:33:00,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:33:00,809 INFO L225 Difference]: With dead ends: 44 [2020-08-21 20:33:00,809 INFO L226 Difference]: Without dead ends: 30 [2020-08-21 20:33:00,812 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 [2020-08-21 20:33:00,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-08-21 20:33:00,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-08-21 20:33:00,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-08-21 20:33:00,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2020-08-21 20:33:00,860 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 13 [2020-08-21 20:33:00,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:33:00,861 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-08-21 20:33:00,861 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 20:33:00,861 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-08-21 20:33:00,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-08-21 20:33:00,863 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:33:00,864 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 20:33:00,864 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 20:33:00,864 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:33:00,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:33:00,865 INFO L82 PathProgramCache]: Analyzing trace with hash -1134800479, now seen corresponding path program 1 times [2020-08-21 20:33:00,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:33:00,866 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [490578451] [2020-08-21 20:33:00,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:33:00,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:00,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:33:00,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:00,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 20:33:00,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:00,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 20:33:00,930 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [490578451] [2020-08-21 20:33:00,930 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 20:33:00,930 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 20:33:00,931 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060932055] [2020-08-21 20:33:00,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 20:33:00,933 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:33:00,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 20:33:00,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-21 20:33:00,934 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 5 states. [2020-08-21 20:33:01,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:33:01,001 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2020-08-21 20:33:01,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 20:33:01,002 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-08-21 20:33:01,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:33:01,004 INFO L225 Difference]: With dead ends: 36 [2020-08-21 20:33:01,004 INFO L226 Difference]: Without dead ends: 32 [2020-08-21 20:33:01,006 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 [2020-08-21 20:33:01,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-08-21 20:33:01,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2020-08-21 20:33:01,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-08-21 20:33:01,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2020-08-21 20:33:01,016 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 14 [2020-08-21 20:33:01,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:33:01,017 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-08-21 20:33:01,017 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 20:33:01,017 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-08-21 20:33:01,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-08-21 20:33:01,020 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:33:01,022 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 20:33:01,022 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 20:33:01,023 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:33:01,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:33:01,023 INFO L82 PathProgramCache]: Analyzing trace with hash -1592795560, now seen corresponding path program 1 times [2020-08-21 20:33:01,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:33:01,025 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1155427508] [2020-08-21 20:33:01,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:33:01,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:01,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:33:01,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:01,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 20:33:01,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:01,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:01,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:01,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 20:33:01,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:01,165 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-21 20:33:01,166 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1155427508] [2020-08-21 20:33:01,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 20:33:01,166 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 20:33:01,167 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678177453] [2020-08-21 20:33:01,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 20:33:01,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:33:01,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 20:33:01,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-08-21 20:33:01,168 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 7 states. [2020-08-21 20:33:01,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:33:01,296 INFO L93 Difference]: Finished difference Result 58 states and 78 transitions. [2020-08-21 20:33:01,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 20:33:01,297 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 26 [2020-08-21 20:33:01,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:33:01,298 INFO L225 Difference]: With dead ends: 58 [2020-08-21 20:33:01,298 INFO L226 Difference]: Without dead ends: 34 [2020-08-21 20:33:01,300 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 [2020-08-21 20:33:01,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-08-21 20:33:01,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2020-08-21 20:33:01,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-08-21 20:33:01,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2020-08-21 20:33:01,324 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 26 [2020-08-21 20:33:01,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:33:01,325 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2020-08-21 20:33:01,325 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 20:33:01,326 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2020-08-21 20:33:01,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-08-21 20:33:01,329 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:33:01,330 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] [2020-08-21 20:33:01,331 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 20:33:01,331 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:33:01,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:33:01,332 INFO L82 PathProgramCache]: Analyzing trace with hash 746633022, now seen corresponding path program 1 times [2020-08-21 20:33:01,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:33:01,333 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1818230739] [2020-08-21 20:33:01,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:33:01,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:01,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:33:01,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:01,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 20:33:01,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:01,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:01,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:01,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:01,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:01,465 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-21 20:33:01,466 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1818230739] [2020-08-21 20:33:01,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 20:33:01,466 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 20:33:01,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748287749] [2020-08-21 20:33:01,468 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 20:33:01,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:33:01,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 20:33:01,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-08-21 20:33:01,469 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand 7 states. [2020-08-21 20:33:01,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:33:01,646 INFO L93 Difference]: Finished difference Result 54 states and 74 transitions. [2020-08-21 20:33:01,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 20:33:01,647 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-08-21 20:33:01,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:33:01,651 INFO L225 Difference]: With dead ends: 54 [2020-08-21 20:33:01,651 INFO L226 Difference]: Without dead ends: 50 [2020-08-21 20:33:01,652 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 [2020-08-21 20:33:01,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-08-21 20:33:01,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2020-08-21 20:33:01,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-08-21 20:33:01,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 65 transitions. [2020-08-21 20:33:01,666 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 65 transitions. Word has length 27 [2020-08-21 20:33:01,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:33:01,666 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 65 transitions. [2020-08-21 20:33:01,666 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 20:33:01,667 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 65 transitions. [2020-08-21 20:33:01,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-08-21 20:33:01,669 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:33:01,669 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] [2020-08-21 20:33:01,669 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-21 20:33:01,670 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:33:01,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:33:01,670 INFO L82 PathProgramCache]: Analyzing trace with hash 986908919, now seen corresponding path program 1 times [2020-08-21 20:33:01,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:33:01,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [179288120] [2020-08-21 20:33:01,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:33:01,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:01,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:33:01,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:01,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 20:33:01,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:01,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:01,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:01,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:01,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:01,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-21 20:33:01,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:01,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-08-21 20:33:01,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:01,817 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-08-21 20:33:01,817 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [179288120] [2020-08-21 20:33:01,817 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 20:33:01,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-21 20:33:01,818 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183043055] [2020-08-21 20:33:01,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 20:33:01,819 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:33:01,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 20:33:01,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-08-21 20:33:01,821 INFO L87 Difference]: Start difference. First operand 48 states and 65 transitions. Second operand 6 states. [2020-08-21 20:33:01,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:33:01,902 INFO L93 Difference]: Finished difference Result 94 states and 142 transitions. [2020-08-21 20:33:01,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-21 20:33:01,903 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2020-08-21 20:33:01,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:33:01,905 INFO L225 Difference]: With dead ends: 94 [2020-08-21 20:33:01,905 INFO L226 Difference]: Without dead ends: 52 [2020-08-21 20:33:01,907 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 [2020-08-21 20:33:01,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-08-21 20:33:01,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-08-21 20:33:01,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-08-21 20:33:01,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2020-08-21 20:33:01,918 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 39 [2020-08-21 20:33:01,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:33:01,919 INFO L479 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions. [2020-08-21 20:33:01,919 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 20:33:01,919 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2020-08-21 20:33:01,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-08-21 20:33:01,921 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:33:01,921 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] [2020-08-21 20:33:01,922 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-21 20:33:01,922 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:33:01,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:33:01,922 INFO L82 PathProgramCache]: Analyzing trace with hash -2100495745, now seen corresponding path program 1 times [2020-08-21 20:33:01,923 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:33:01,923 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1640824400] [2020-08-21 20:33:01,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:33:01,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:01,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:33:01,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:01,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 20:33:01,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:01,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:01,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:02,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:02,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:02,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:02,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:02,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:02,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:02,056 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-08-21 20:33:02,057 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1640824400] [2020-08-21 20:33:02,057 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 20:33:02,057 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-21 20:33:02,058 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971767914] [2020-08-21 20:33:02,058 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 20:33:02,058 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:33:02,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 20:33:02,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-21 20:33:02,059 INFO L87 Difference]: Start difference. First operand 52 states and 71 transitions. Second operand 8 states. [2020-08-21 20:33:02,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:33:02,197 INFO L93 Difference]: Finished difference Result 103 states and 158 transitions. [2020-08-21 20:33:02,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 20:33:02,199 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 40 [2020-08-21 20:33:02,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:33:02,204 INFO L225 Difference]: With dead ends: 103 [2020-08-21 20:33:02,204 INFO L226 Difference]: Without dead ends: 57 [2020-08-21 20:33:02,209 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 [2020-08-21 20:33:02,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-08-21 20:33:02,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 54. [2020-08-21 20:33:02,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-08-21 20:33:02,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 74 transitions. [2020-08-21 20:33:02,236 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 74 transitions. Word has length 40 [2020-08-21 20:33:02,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:33:02,238 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 74 transitions. [2020-08-21 20:33:02,238 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 20:33:02,238 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 74 transitions. [2020-08-21 20:33:02,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-08-21 20:33:02,245 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:33:02,245 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] [2020-08-21 20:33:02,246 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-21 20:33:02,246 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:33:02,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:33:02,246 INFO L82 PathProgramCache]: Analyzing trace with hash 208191613, now seen corresponding path program 1 times [2020-08-21 20:33:02,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:33:02,250 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [410483220] [2020-08-21 20:33:02,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:33:02,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:02,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:33:02,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:02,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 20:33:02,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:02,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:02,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:02,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:02,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:02,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:02,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:02,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:02,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:02,478 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-08-21 20:33:02,479 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [410483220] [2020-08-21 20:33:02,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 20:33:02,482 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-21 20:33:02,482 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407881665] [2020-08-21 20:33:02,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 20:33:02,483 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:33:02,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 20:33:02,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-21 20:33:02,485 INFO L87 Difference]: Start difference. First operand 54 states and 74 transitions. Second operand 8 states. [2020-08-21 20:33:02,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:33:02,713 INFO L93 Difference]: Finished difference Result 86 states and 126 transitions. [2020-08-21 20:33:02,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-21 20:33:02,714 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2020-08-21 20:33:02,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:33:02,716 INFO L225 Difference]: With dead ends: 86 [2020-08-21 20:33:02,716 INFO L226 Difference]: Without dead ends: 82 [2020-08-21 20:33:02,717 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 [2020-08-21 20:33:02,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-08-21 20:33:02,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 79. [2020-08-21 20:33:02,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-08-21 20:33:02,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 118 transitions. [2020-08-21 20:33:02,733 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 118 transitions. Word has length 41 [2020-08-21 20:33:02,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:33:02,734 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 118 transitions. [2020-08-21 20:33:02,734 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 20:33:02,734 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 118 transitions. [2020-08-21 20:33:02,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-08-21 20:33:02,737 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:33:02,737 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 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] [2020-08-21 20:33:02,737 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-21 20:33:02,737 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:33:02,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:33:02,738 INFO L82 PathProgramCache]: Analyzing trace with hash -405677468, now seen corresponding path program 1 times [2020-08-21 20:33:02,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:33:02,738 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [286285092] [2020-08-21 20:33:02,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:33:02,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:02,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:33:02,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:02,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 20:33:02,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:02,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:02,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:02,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:02,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:02,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:02,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:02,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:02,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:02,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:02,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:02,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-08-21 20:33:02,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:02,875 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-08-21 20:33:02,876 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [286285092] [2020-08-21 20:33:02,876 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 20:33:02,876 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-21 20:33:02,877 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685951748] [2020-08-21 20:33:02,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-21 20:33:02,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:33:02,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-21 20:33:02,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-08-21 20:33:02,878 INFO L87 Difference]: Start difference. First operand 79 states and 118 transitions. Second operand 8 states. [2020-08-21 20:33:03,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:33:03,043 INFO L93 Difference]: Finished difference Result 167 states and 288 transitions. [2020-08-21 20:33:03,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-21 20:33:03,045 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 54 [2020-08-21 20:33:03,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:33:03,049 INFO L225 Difference]: With dead ends: 167 [2020-08-21 20:33:03,049 INFO L226 Difference]: Without dead ends: 94 [2020-08-21 20:33:03,051 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 [2020-08-21 20:33:03,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-08-21 20:33:03,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 88. [2020-08-21 20:33:03,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-08-21 20:33:03,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 134 transitions. [2020-08-21 20:33:03,074 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 134 transitions. Word has length 54 [2020-08-21 20:33:03,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:33:03,074 INFO L479 AbstractCegarLoop]: Abstraction has 88 states and 134 transitions. [2020-08-21 20:33:03,074 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-21 20:33:03,075 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 134 transitions. [2020-08-21 20:33:03,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-08-21 20:33:03,078 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:33:03,078 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 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] [2020-08-21 20:33:03,078 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-21 20:33:03,078 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:33:03,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:33:03,079 INFO L82 PathProgramCache]: Analyzing trace with hash -242988780, now seen corresponding path program 1 times [2020-08-21 20:33:03,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:33:03,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [342701029] [2020-08-21 20:33:03,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:33:03,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:03,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:33:03,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:03,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 20:33:03,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:03,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:03,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:03,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:03,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:03,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:03,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:03,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:03,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:03,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:03,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:03,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:03,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:03,224 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 19 proven. 11 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-08-21 20:33:03,225 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [342701029] [2020-08-21 20:33:03,225 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 20:33:03,225 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-21 20:33:03,226 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440081067] [2020-08-21 20:33:03,226 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 20:33:03,226 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:33:03,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 20:33:03,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-08-21 20:33:03,227 INFO L87 Difference]: Start difference. First operand 88 states and 134 transitions. Second operand 10 states. [2020-08-21 20:33:03,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:33:03,451 INFO L93 Difference]: Finished difference Result 188 states and 331 transitions. [2020-08-21 20:33:03,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-21 20:33:03,451 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 55 [2020-08-21 20:33:03,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:33:03,453 INFO L225 Difference]: With dead ends: 188 [2020-08-21 20:33:03,454 INFO L226 Difference]: Without dead ends: 109 [2020-08-21 20:33:03,455 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 [2020-08-21 20:33:03,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-08-21 20:33:03,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 100. [2020-08-21 20:33:03,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-08-21 20:33:03,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 158 transitions. [2020-08-21 20:33:03,471 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 158 transitions. Word has length 55 [2020-08-21 20:33:03,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:33:03,472 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 158 transitions. [2020-08-21 20:33:03,472 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 20:33:03,472 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 158 transitions. [2020-08-21 20:33:03,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-08-21 20:33:03,474 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:33:03,474 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 20:33:03,475 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-21 20:33:03,475 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:33:03,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:33:03,475 INFO L82 PathProgramCache]: Analyzing trace with hash -908952008, now seen corresponding path program 2 times [2020-08-21 20:33:03,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:33:03,476 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1993484908] [2020-08-21 20:33:03,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:33:03,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:03,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:33:03,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:03,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 20:33:03,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:03,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:03,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:03,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:03,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:03,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:03,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:03,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:03,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:03,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:03,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:03,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:03,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:03,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:03,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:03,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:03,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:03,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:03,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:03,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:03,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:03,713 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 30 proven. 52 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-08-21 20:33:03,713 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1993484908] [2020-08-21 20:33:03,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 20:33:03,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-08-21 20:33:03,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218395081] [2020-08-21 20:33:03,715 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-21 20:33:03,715 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:33:03,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-21 20:33:03,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-08-21 20:33:03,716 INFO L87 Difference]: Start difference. First operand 100 states and 158 transitions. Second operand 12 states. [2020-08-21 20:33:04,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:33:04,063 INFO L93 Difference]: Finished difference Result 199 states and 354 transitions. [2020-08-21 20:33:04,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-08-21 20:33:04,063 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 82 [2020-08-21 20:33:04,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:33:04,066 INFO L225 Difference]: With dead ends: 199 [2020-08-21 20:33:04,066 INFO L226 Difference]: Without dead ends: 86 [2020-08-21 20:33:04,068 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 [2020-08-21 20:33:04,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-08-21 20:33:04,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 71. [2020-08-21 20:33:04,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-08-21 20:33:04,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 93 transitions. [2020-08-21 20:33:04,084 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 93 transitions. Word has length 82 [2020-08-21 20:33:04,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:33:04,084 INFO L479 AbstractCegarLoop]: Abstraction has 71 states and 93 transitions. [2020-08-21 20:33:04,084 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-21 20:33:04,085 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 93 transitions. [2020-08-21 20:33:04,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-08-21 20:33:04,086 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:33:04,086 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 20:33:04,087 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-21 20:33:04,087 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:33:04,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:33:04,087 INFO L82 PathProgramCache]: Analyzing trace with hash -2119203654, now seen corresponding path program 2 times [2020-08-21 20:33:04,088 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:33:04,088 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1938107968] [2020-08-21 20:33:04,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:33:04,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:04,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:33:04,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:04,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 20:33:04,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:04,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:04,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:04,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:04,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:04,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:04,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:04,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:04,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:04,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:04,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:04,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:04,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:04,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:04,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:04,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-21 20:33:04,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:04,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:04,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:04,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:04,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:04,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:04,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:04,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:04,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:04,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:04,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:04,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:04,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:04,327 INFO L134 CoverageAnalysis]: Checked inductivity of 276 backedges. 44 proven. 79 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2020-08-21 20:33:04,328 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1938107968] [2020-08-21 20:33:04,328 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 20:33:04,328 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-21 20:33:04,328 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661221356] [2020-08-21 20:33:04,330 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-21 20:33:04,330 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:33:04,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-21 20:33:04,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-08-21 20:33:04,331 INFO L87 Difference]: Start difference. First operand 71 states and 93 transitions. Second operand 10 states. [2020-08-21 20:33:04,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:33:04,543 INFO L93 Difference]: Finished difference Result 142 states and 204 transitions. [2020-08-21 20:33:04,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-21 20:33:04,544 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 110 [2020-08-21 20:33:04,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:33:04,545 INFO L225 Difference]: With dead ends: 142 [2020-08-21 20:33:04,545 INFO L226 Difference]: Without dead ends: 78 [2020-08-21 20:33:04,547 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2020-08-21 20:33:04,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-08-21 20:33:04,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-08-21 20:33:04,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-08-21 20:33:04,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 100 transitions. [2020-08-21 20:33:04,566 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 100 transitions. Word has length 110 [2020-08-21 20:33:04,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:33:04,567 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 100 transitions. [2020-08-21 20:33:04,567 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-21 20:33:04,567 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 100 transitions. [2020-08-21 20:33:04,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-08-21 20:33:04,575 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:33:04,576 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 13, 10, 10, 10, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 20:33:04,576 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-21 20:33:04,576 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:33:04,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:33:04,577 INFO L82 PathProgramCache]: Analyzing trace with hash -1263382818, now seen corresponding path program 3 times [2020-08-21 20:33:04,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:33:04,578 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [394838777] [2020-08-21 20:33:04,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:33:04,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:04,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:33:04,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:04,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 20:33:04,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:04,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:04,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:04,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:04,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:04,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:04,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:04,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:04,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:04,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:04,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:04,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:04,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:04,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:04,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:04,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:04,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:04,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:04,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:04,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:04,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:04,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-21 20:33:04,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:04,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:04,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:04,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:04,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:04,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-21 20:33:04,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:05,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:05,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:05,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:05,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:05,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:05,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:05,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:05,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:05,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:05,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:05,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:05,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:05,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:05,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:05,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:05,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:05,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:05,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:05,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-08-21 20:33:05,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:05,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:05,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:05,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:05,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:05,139 INFO L134 CoverageAnalysis]: Checked inductivity of 999 backedges. 133 proven. 373 refuted. 0 times theorem prover too weak. 493 trivial. 0 not checked. [2020-08-21 20:33:05,139 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [394838777] [2020-08-21 20:33:05,139 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 20:33:05,139 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-08-21 20:33:05,140 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901397335] [2020-08-21 20:33:05,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-08-21 20:33:05,140 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:33:05,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-08-21 20:33:05,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2020-08-21 20:33:05,141 INFO L87 Difference]: Start difference. First operand 78 states and 100 transitions. Second operand 15 states. [2020-08-21 20:33:05,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:33:05,663 INFO L93 Difference]: Finished difference Result 184 states and 282 transitions. [2020-08-21 20:33:05,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-08-21 20:33:05,663 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 192 [2020-08-21 20:33:05,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:33:05,665 INFO L225 Difference]: With dead ends: 184 [2020-08-21 20:33:05,666 INFO L226 Difference]: Without dead ends: 111 [2020-08-21 20:33:05,667 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=137, Invalid=675, Unknown=0, NotChecked=0, Total=812 [2020-08-21 20:33:05,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-08-21 20:33:05,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 99. [2020-08-21 20:33:05,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 99 states. [2020-08-21 20:33:05,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 133 transitions. [2020-08-21 20:33:05,676 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 133 transitions. Word has length 192 [2020-08-21 20:33:05,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:33:05,676 INFO L479 AbstractCegarLoop]: Abstraction has 99 states and 133 transitions. [2020-08-21 20:33:05,676 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-08-21 20:33:05,677 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 133 transitions. [2020-08-21 20:33:05,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-08-21 20:33:05,679 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:33:05,679 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 8, 7, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 20:33:05,679 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-21 20:33:05,679 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:33:05,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:33:05,680 INFO L82 PathProgramCache]: Analyzing trace with hash -2102107778, now seen corresponding path program 1 times [2020-08-21 20:33:05,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:33:05,680 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1031396314] [2020-08-21 20:33:05,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:33:05,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:05,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:33:05,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:05,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 20:33:05,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:05,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:05,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:05,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:05,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:05,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:05,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:05,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:05,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:05,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:05,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:05,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:05,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:05,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:05,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:05,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:05,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:05,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:05,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:05,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:05,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:05,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:05,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:05,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:05,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:05,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:05,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:05,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-08-21 20:33:05,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:05,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:05,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:05,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:05,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:05,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:05,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:05,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:05,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:05,941 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 109 proven. 85 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2020-08-21 20:33:05,942 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1031396314] [2020-08-21 20:33:05,942 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 20:33:05,942 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-21 20:33:05,942 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943505407] [2020-08-21 20:33:05,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-21 20:33:05,943 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:33:05,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-21 20:33:05,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-08-21 20:33:05,944 INFO L87 Difference]: Start difference. First operand 99 states and 133 transitions. Second operand 11 states. [2020-08-21 20:33:06,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:33:06,174 INFO L93 Difference]: Finished difference Result 188 states and 266 transitions. [2020-08-21 20:33:06,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-21 20:33:06,174 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 136 [2020-08-21 20:33:06,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:33:06,176 INFO L225 Difference]: With dead ends: 188 [2020-08-21 20:33:06,176 INFO L226 Difference]: Without dead ends: 101 [2020-08-21 20:33:06,177 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2020-08-21 20:33:06,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-08-21 20:33:06,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 98. [2020-08-21 20:33:06,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-08-21 20:33:06,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 130 transitions. [2020-08-21 20:33:06,185 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 130 transitions. Word has length 136 [2020-08-21 20:33:06,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:33:06,186 INFO L479 AbstractCegarLoop]: Abstraction has 98 states and 130 transitions. [2020-08-21 20:33:06,186 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-21 20:33:06,186 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 130 transitions. [2020-08-21 20:33:06,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-08-21 20:33:06,188 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:33:06,188 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 11, 9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 20:33:06,189 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-08-21 20:33:06,189 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:33:06,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:33:06,189 INFO L82 PathProgramCache]: Analyzing trace with hash 677703633, now seen corresponding path program 2 times [2020-08-21 20:33:06,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:33:06,190 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [586359461] [2020-08-21 20:33:06,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:33:06,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:06,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:33:06,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:06,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 20:33:06,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:06,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:06,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:06,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:06,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:06,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:06,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:06,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:06,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:06,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:06,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:06,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:06,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:06,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:06,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:06,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:06,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:06,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:06,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:06,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:06,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:06,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:06,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:06,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:06,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:06,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:06,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:06,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:06,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:06,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:06,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:06,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:06,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:06,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:06,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:06,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:06,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:06,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:06,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:06,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-08-21 20:33:06,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:06,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:06,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:06,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:06,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:06,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:06,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:06,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:06,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:06,525 INFO L134 CoverageAnalysis]: Checked inductivity of 787 backedges. 138 proven. 250 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2020-08-21 20:33:06,525 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [586359461] [2020-08-21 20:33:06,526 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 20:33:06,526 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-08-21 20:33:06,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626349396] [2020-08-21 20:33:06,527 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-08-21 20:33:06,527 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:33:06,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-08-21 20:33:06,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-08-21 20:33:06,528 INFO L87 Difference]: Start difference. First operand 98 states and 130 transitions. Second operand 14 states. [2020-08-21 20:33:07,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:33:07,086 INFO L93 Difference]: Finished difference Result 224 states and 343 transitions. [2020-08-21 20:33:07,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-08-21 20:33:07,089 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 177 [2020-08-21 20:33:07,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:33:07,091 INFO L225 Difference]: With dead ends: 224 [2020-08-21 20:33:07,091 INFO L226 Difference]: Without dead ends: 131 [2020-08-21 20:33:07,094 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=625, Unknown=0, NotChecked=0, Total=756 [2020-08-21 20:33:07,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-08-21 20:33:07,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 114. [2020-08-21 20:33:07,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-08-21 20:33:07,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 154 transitions. [2020-08-21 20:33:07,105 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 154 transitions. Word has length 177 [2020-08-21 20:33:07,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:33:07,105 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 154 transitions. [2020-08-21 20:33:07,105 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-08-21 20:33:07,105 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 154 transitions. [2020-08-21 20:33:07,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-08-21 20:33:07,108 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:33:07,108 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, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 20:33:07,108 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-08-21 20:33:07,109 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:33:07,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:33:07,109 INFO L82 PathProgramCache]: Analyzing trace with hash 307857833, now seen corresponding path program 3 times [2020-08-21 20:33:07,110 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:33:07,110 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [684395279] [2020-08-21 20:33:07,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:33:07,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:33:07,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 20:33:07,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:07,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:07,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:07,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:07,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:07,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:07,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:07,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:07,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:07,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:07,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:07,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:07,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:07,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:07,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:07,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 20:33:07,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:07,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:07,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:07,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:07,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:07,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:07,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:07,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:07,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,461 INFO L134 CoverageAnalysis]: Checked inductivity of 786 backedges. 45 proven. 260 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2020-08-21 20:33:07,461 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [684395279] [2020-08-21 20:33:07,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 20:33:07,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-21 20:33:07,462 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299951674] [2020-08-21 20:33:07,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-21 20:33:07,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:33:07,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-21 20:33:07,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-08-21 20:33:07,463 INFO L87 Difference]: Start difference. First operand 114 states and 154 transitions. Second operand 11 states. [2020-08-21 20:33:07,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:33:07,712 INFO L93 Difference]: Finished difference Result 244 states and 371 transitions. [2020-08-21 20:33:07,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-21 20:33:07,713 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 177 [2020-08-21 20:33:07,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:33:07,716 INFO L225 Difference]: With dead ends: 244 [2020-08-21 20:33:07,717 INFO L226 Difference]: Without dead ends: 240 [2020-08-21 20:33:07,717 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 [2020-08-21 20:33:07,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-08-21 20:33:07,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 220. [2020-08-21 20:33:07,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-08-21 20:33:07,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 331 transitions. [2020-08-21 20:33:07,734 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 331 transitions. Word has length 177 [2020-08-21 20:33:07,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:33:07,735 INFO L479 AbstractCegarLoop]: Abstraction has 220 states and 331 transitions. [2020-08-21 20:33:07,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-21 20:33:07,735 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 331 transitions. [2020-08-21 20:33:07,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-08-21 20:33:07,739 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:33:07,739 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 18, 18, 17, 16, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 8, 6, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 20:33:07,740 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-08-21 20:33:07,740 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:33:07,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:33:07,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1318955698, now seen corresponding path program 4 times [2020-08-21 20:33:07,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:33:07,741 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1319214800] [2020-08-21 20:33:07,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:33:07,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:33:07,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 20:33:07,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:07,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:07,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:07,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:07,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:07,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:07,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:07,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:07,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:07,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:07,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:07,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:07,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:07,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:07,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:07,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:08,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-21 20:33:08,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:08,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:08,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:08,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:08,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:08,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:08,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:08,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:08,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:08,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-08-21 20:33:08,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:08,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:08,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:08,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:08,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:08,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:08,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:08,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:08,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:08,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:08,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:08,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:08,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:08,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:08,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:08,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:08,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:08,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:08,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:08,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:08,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:08,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:08,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:08,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:08,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:08,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:08,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:08,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-08-21 20:33:08,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:08,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:08,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:08,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:08,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:08,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:08,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:08,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:08,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:08,197 INFO L134 CoverageAnalysis]: Checked inductivity of 2032 backedges. 167 proven. 362 refuted. 0 times theorem prover too weak. 1503 trivial. 0 not checked. [2020-08-21 20:33:08,197 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1319214800] [2020-08-21 20:33:08,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 20:33:08,198 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-21 20:33:08,198 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012466119] [2020-08-21 20:33:08,198 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-21 20:33:08,199 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:33:08,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-21 20:33:08,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-08-21 20:33:08,199 INFO L87 Difference]: Start difference. First operand 220 states and 331 transitions. Second operand 11 states. [2020-08-21 20:33:08,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:33:08,474 INFO L93 Difference]: Finished difference Result 429 states and 677 transitions. [2020-08-21 20:33:08,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-21 20:33:08,475 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 274 [2020-08-21 20:33:08,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:33:08,480 INFO L225 Difference]: With dead ends: 429 [2020-08-21 20:33:08,480 INFO L226 Difference]: Without dead ends: 225 [2020-08-21 20:33:08,483 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2020-08-21 20:33:08,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2020-08-21 20:33:08,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 222. [2020-08-21 20:33:08,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-08-21 20:33:08,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 316 transitions. [2020-08-21 20:33:08,510 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 316 transitions. Word has length 274 [2020-08-21 20:33:08,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:33:08,512 INFO L479 AbstractCegarLoop]: Abstraction has 222 states and 316 transitions. [2020-08-21 20:33:08,513 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-21 20:33:08,513 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 316 transitions. [2020-08-21 20:33:08,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2020-08-21 20:33:08,517 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:33:08,518 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, 7, 6, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 20:33:08,518 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-08-21 20:33:08,518 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:33:08,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:33:08,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1614185823, now seen corresponding path program 5 times [2020-08-21 20:33:08,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:33:08,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1718857409] [2020-08-21 20:33:08,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:33:08,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:08,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:33:08,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:08,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 20:33:08,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:08,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:08,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:08,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:08,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:08,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:08,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:08,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:08,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:09,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:09,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:09,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:09,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:09,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:09,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:09,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:09,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:09,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:09,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:09,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:09,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:09,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:09,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:09,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:09,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:09,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:09,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:09,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:09,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:09,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:09,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:09,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:09,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:09,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 20:33:09,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:09,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:09,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:09,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:09,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:09,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:09,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:09,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:09,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:09,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:09,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:09,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:09,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:09,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:09,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:09,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:09,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-21 20:33:09,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:09,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:09,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:09,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:09,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:09,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:09,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:09,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:09,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:09,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:09,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:09,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:09,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:09,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:09,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:09,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:09,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:09,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:09,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:09,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:09,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:09,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:09,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:09,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:09,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:09,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:09,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:09,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:09,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:09,560 INFO L134 CoverageAnalysis]: Checked inductivity of 2216 backedges. 94 proven. 558 refuted. 0 times theorem prover too weak. 1564 trivial. 0 not checked. [2020-08-21 20:33:09,560 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1718857409] [2020-08-21 20:33:09,560 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 20:33:09,561 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-08-21 20:33:09,561 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350562116] [2020-08-21 20:33:09,563 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-21 20:33:09,563 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:33:09,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-21 20:33:09,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-08-21 20:33:09,564 INFO L87 Difference]: Start difference. First operand 222 states and 316 transitions. Second operand 12 states. [2020-08-21 20:33:10,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:33:10,003 INFO L93 Difference]: Finished difference Result 469 states and 720 transitions. [2020-08-21 20:33:10,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-08-21 20:33:10,004 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 286 [2020-08-21 20:33:10,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:33:10,013 INFO L225 Difference]: With dead ends: 469 [2020-08-21 20:33:10,014 INFO L226 Difference]: Without dead ends: 465 [2020-08-21 20:33:10,015 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2020-08-21 20:33:10,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2020-08-21 20:33:10,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 445. [2020-08-21 20:33:10,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 445 states. [2020-08-21 20:33:10,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 682 transitions. [2020-08-21 20:33:10,066 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 682 transitions. Word has length 286 [2020-08-21 20:33:10,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:33:10,069 INFO L479 AbstractCegarLoop]: Abstraction has 445 states and 682 transitions. [2020-08-21 20:33:10,070 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-21 20:33:10,070 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 682 transitions. [2020-08-21 20:33:10,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2020-08-21 20:33:10,076 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:33:10,077 INFO L422 BasicCegarLoop]: trace histogram [27, 27, 26, 26, 22, 21, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 9, 8, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 20:33:10,077 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-08-21 20:33:10,077 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:33:10,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:33:10,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1485391483, now seen corresponding path program 6 times [2020-08-21 20:33:10,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:33:10,078 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [796468437] [2020-08-21 20:33:10,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:33:10,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:33:10,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 20:33:10,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:10,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:10,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:10,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:10,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:10,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:10,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:10,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:10,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:10,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:10,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:10,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:10,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:10,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:10,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:10,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:10,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:10,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 20:33:10,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:10,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:10,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:10,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:10,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-08-21 20:33:10,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:10,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:10,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:10,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:10,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:10,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:10,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:10,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:10,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:10,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:10,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:10,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:10,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:10,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:10,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-08-21 20:33:10,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:10,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:10,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:10,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:10,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:10,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:10,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:10,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:10,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:10,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:10,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:10,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:10,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:10,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:10,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:10,976 INFO L134 CoverageAnalysis]: Checked inductivity of 3769 backedges. 297 proven. 795 refuted. 0 times theorem prover too weak. 2677 trivial. 0 not checked. [2020-08-21 20:33:10,976 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [796468437] [2020-08-21 20:33:10,976 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 20:33:10,977 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-08-21 20:33:10,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176042088] [2020-08-21 20:33:10,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-08-21 20:33:10,978 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:33:10,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-08-21 20:33:10,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-08-21 20:33:10,981 INFO L87 Difference]: Start difference. First operand 445 states and 682 transitions. Second operand 14 states. [2020-08-21 20:33:11,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:33:11,434 INFO L93 Difference]: Finished difference Result 924 states and 1512 transitions. [2020-08-21 20:33:11,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-08-21 20:33:11,435 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 368 [2020-08-21 20:33:11,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:33:11,442 INFO L225 Difference]: With dead ends: 924 [2020-08-21 20:33:11,442 INFO L226 Difference]: Without dead ends: 493 [2020-08-21 20:33:11,446 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=504, Unknown=0, NotChecked=0, Total=600 [2020-08-21 20:33:11,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2020-08-21 20:33:11,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 439. [2020-08-21 20:33:11,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 439 states. [2020-08-21 20:33:11,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 658 transitions. [2020-08-21 20:33:11,479 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 658 transitions. Word has length 368 [2020-08-21 20:33:11,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:33:11,480 INFO L479 AbstractCegarLoop]: Abstraction has 439 states and 658 transitions. [2020-08-21 20:33:11,480 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-08-21 20:33:11,480 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 658 transitions. [2020-08-21 20:33:11,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2020-08-21 20:33:11,486 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:33:11,487 INFO L422 BasicCegarLoop]: trace histogram [43, 43, 40, 40, 34, 33, 21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 20, 13, 13, 10, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 20:33:11,487 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-08-21 20:33:11,487 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:33:11,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:33:11,488 INFO L82 PathProgramCache]: Analyzing trace with hash -1718075054, now seen corresponding path program 7 times [2020-08-21 20:33:11,488 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:33:11,488 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [324477887] [2020-08-21 20:33:11,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:33:11,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:11,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:33:11,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:11,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 20:33:11,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:11,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:12,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:12,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:12,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:12,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:12,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:12,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:12,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:12,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:12,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:12,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:12,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:12,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:12,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:12,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:12,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:12,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:12,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 20:33:12,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:12,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:12,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:12,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:12,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:12,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:12,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:12,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:12,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-21 20:33:12,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:12,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:12,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:12,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:12,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:12,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:12,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:12,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:12,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:12,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:12,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:12,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:12,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:12,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:12,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:12,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 20:33:12,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:12,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:12,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:12,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:12,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:12,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:12,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:12,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:12,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2020-08-21 20:33:12,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:12,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:13,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:13,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:13,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:13,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:13,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:13,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:13,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:13,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:13,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:13,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:13,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:13,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:13,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:13,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:13,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:13,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:13,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:13,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:13,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:13,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:13,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:13,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:13,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:13,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:13,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:13,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:13,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:13,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:13,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:13,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:13,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:13,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 20:33:13,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:13,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:13,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:13,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:13,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:13,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:13,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:13,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:13,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:13,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:13,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:13,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:13,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:13,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:13,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:13,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:13,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:13,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-21 20:33:13,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:13,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:13,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:13,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:13,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:13,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:13,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:13,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:13,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:13,969 INFO L134 CoverageAnalysis]: Checked inductivity of 9421 backedges. 593 proven. 1863 refuted. 0 times theorem prover too weak. 6965 trivial. 0 not checked. [2020-08-21 20:33:13,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [324477887] [2020-08-21 20:33:13,970 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 20:33:13,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-08-21 20:33:13,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355639109] [2020-08-21 20:33:13,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-08-21 20:33:13,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:33:13,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-08-21 20:33:13,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2020-08-21 20:33:13,975 INFO L87 Difference]: Start difference. First operand 439 states and 658 transitions. Second operand 18 states. [2020-08-21 20:33:14,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:33:14,863 INFO L93 Difference]: Finished difference Result 828 states and 1410 transitions. [2020-08-21 20:33:14,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-08-21 20:33:14,864 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 572 [2020-08-21 20:33:14,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:33:14,871 INFO L225 Difference]: With dead ends: 828 [2020-08-21 20:33:14,871 INFO L226 Difference]: Without dead ends: 387 [2020-08-21 20:33:14,876 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=250, Invalid=1472, Unknown=0, NotChecked=0, Total=1722 [2020-08-21 20:33:14,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2020-08-21 20:33:14,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 319. [2020-08-21 20:33:14,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-08-21 20:33:14,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 486 transitions. [2020-08-21 20:33:14,903 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 486 transitions. Word has length 572 [2020-08-21 20:33:14,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:33:14,904 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 486 transitions. [2020-08-21 20:33:14,904 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-08-21 20:33:14,904 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 486 transitions. [2020-08-21 20:33:14,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2020-08-21 20:33:14,907 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:33:14,907 INFO L422 BasicCegarLoop]: trace histogram [27, 27, 24, 24, 21, 20, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 9, 7, 6, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 20:33:14,907 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-08-21 20:33:14,907 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:33:14,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:33:14,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1572493120, now seen corresponding path program 8 times [2020-08-21 20:33:14,908 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:33:14,908 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [166385008] [2020-08-21 20:33:14,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:33:14,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:33:15,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 20:33:15,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:15,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:15,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:15,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:15,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:15,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:15,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:15,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:15,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:15,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:15,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:15,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:15,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:15,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:15,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:15,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:15,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:15,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 20:33:15,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:15,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:15,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:15,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:15,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:15,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:15,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:15,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:15,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-21 20:33:15,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:15,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:15,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:15,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:15,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:15,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:15,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:15,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:15,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-08-21 20:33:15,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:15,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:15,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:15,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:15,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:15,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:15,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:15,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:15,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:15,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:15,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:15,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:15,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:15,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:15,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:15,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:16,037 INFO L134 CoverageAnalysis]: Checked inductivity of 3484 backedges. 422 proven. 756 refuted. 0 times theorem prover too weak. 2306 trivial. 0 not checked. [2020-08-21 20:33:16,037 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [166385008] [2020-08-21 20:33:16,037 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 20:33:16,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-21 20:33:16,038 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89584300] [2020-08-21 20:33:16,039 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-21 20:33:16,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:33:16,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-21 20:33:16,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-08-21 20:33:16,039 INFO L87 Difference]: Start difference. First operand 319 states and 486 transitions. Second operand 16 states. [2020-08-21 20:33:16,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:33:16,773 INFO L93 Difference]: Finished difference Result 712 states and 1182 transitions. [2020-08-21 20:33:16,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-08-21 20:33:16,773 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 354 [2020-08-21 20:33:16,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:33:16,783 INFO L225 Difference]: With dead ends: 712 [2020-08-21 20:33:16,783 INFO L226 Difference]: Without dead ends: 407 [2020-08-21 20:33:16,788 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=132, Invalid=738, Unknown=0, NotChecked=0, Total=870 [2020-08-21 20:33:16,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2020-08-21 20:33:16,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 367. [2020-08-21 20:33:16,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 367 states. [2020-08-21 20:33:16,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 367 states and 545 transitions. [2020-08-21 20:33:16,830 INFO L78 Accepts]: Start accepts. Automaton has 367 states and 545 transitions. Word has length 354 [2020-08-21 20:33:16,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:33:16,830 INFO L479 AbstractCegarLoop]: Abstraction has 367 states and 545 transitions. [2020-08-21 20:33:16,830 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-21 20:33:16,831 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 545 transitions. [2020-08-21 20:33:16,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2020-08-21 20:33:16,836 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:33:16,837 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, 9, 9, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 20:33:16,837 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-08-21 20:33:16,837 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:33:16,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:33:16,838 INFO L82 PathProgramCache]: Analyzing trace with hash 634662915, now seen corresponding path program 9 times [2020-08-21 20:33:16,838 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:33:16,839 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1165459559] [2020-08-21 20:33:16,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:33:16,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:33:17,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 20:33:17,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:17,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:17,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:17,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:17,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:17,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:17,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:17,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:17,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:17,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:17,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:17,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:17,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:17,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:17,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:17,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:17,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:17,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 20:33:17,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:17,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:17,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:17,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:17,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:17,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:17,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:17,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:17,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-21 20:33:17,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:17,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:17,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:17,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:17,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:17,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:17,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:17,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:17,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:17,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:17,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:17,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:17,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:17,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:17,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-08-21 20:33:17,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:17,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:17,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:17,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:17,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:17,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:17,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:17,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:17,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:17,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:17,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:17,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:17,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:17,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:17,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:17,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:18,161 INFO L134 CoverageAnalysis]: Checked inductivity of 4370 backedges. 694 proven. 802 refuted. 0 times theorem prover too weak. 2874 trivial. 0 not checked. [2020-08-21 20:33:18,162 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1165459559] [2020-08-21 20:33:18,162 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 20:33:18,162 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-08-21 20:33:18,163 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62385423] [2020-08-21 20:33:18,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-08-21 20:33:18,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:33:18,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-08-21 20:33:18,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2020-08-21 20:33:18,165 INFO L87 Difference]: Start difference. First operand 367 states and 545 transitions. Second operand 18 states. [2020-08-21 20:33:19,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:33:19,228 INFO L93 Difference]: Finished difference Result 808 states and 1308 transitions. [2020-08-21 20:33:19,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-08-21 20:33:19,229 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 395 [2020-08-21 20:33:19,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:33:19,236 INFO L225 Difference]: With dead ends: 808 [2020-08-21 20:33:19,236 INFO L226 Difference]: Without dead ends: 455 [2020-08-21 20:33:19,240 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=196, Invalid=1210, Unknown=0, NotChecked=0, Total=1406 [2020-08-21 20:33:19,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 455 states. [2020-08-21 20:33:19,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 455 to 391. [2020-08-21 20:33:19,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2020-08-21 20:33:19,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 590 transitions. [2020-08-21 20:33:19,277 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 590 transitions. Word has length 395 [2020-08-21 20:33:19,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:33:19,279 INFO L479 AbstractCegarLoop]: Abstraction has 391 states and 590 transitions. [2020-08-21 20:33:19,279 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-08-21 20:33:19,279 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 590 transitions. [2020-08-21 20:33:19,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2020-08-21 20:33:19,284 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:33:19,284 INFO L422 BasicCegarLoop]: trace histogram [42, 42, 41, 41, 34, 33, 21, 21, 21, 21, 21, 21, 21, 20, 20, 20, 20, 20, 20, 20, 14, 12, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 20:33:19,285 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-08-21 20:33:19,285 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:33:19,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:33:19,285 INFO L82 PathProgramCache]: Analyzing trace with hash 2122481566, now seen corresponding path program 10 times [2020-08-21 20:33:19,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:33:19,286 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [451453722] [2020-08-21 20:33:19,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:33:19,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:19,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:33:19,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:19,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 20:33:19,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:19,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:19,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:19,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:19,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:19,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:19,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:19,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:19,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:20,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:20,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:20,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:20,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:20,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:20,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:20,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:20,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:20,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:20,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:20,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:20,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:20,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 20:33:20,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:20,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:20,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:20,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:20,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:20,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:20,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:20,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:20,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-21 20:33:20,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:20,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:20,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:20,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:20,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:20,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:20,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:20,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:20,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:20,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:20,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:20,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:20,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:20,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:20,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-08-21 20:33:20,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:20,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:20,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:20,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:20,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:20,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:20,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:20,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:20,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:20,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:20,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:20,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:20,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:20,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:20,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:20,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:20,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 20:33:20,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:20,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:20,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:20,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:20,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:20,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:20,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:20,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:20,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-21 20:33:20,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:20,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:20,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:20,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:20,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:20,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:20,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:20,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:20,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:20,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:20,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:20,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:20,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:20,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:20,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:20,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:21,001 INFO L134 CoverageAnalysis]: Checked inductivity of 9413 backedges. 913 proven. 1781 refuted. 0 times theorem prover too weak. 6719 trivial. 0 not checked. [2020-08-21 20:33:21,001 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [451453722] [2020-08-21 20:33:21,002 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 20:33:21,002 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-08-21 20:33:21,002 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601705365] [2020-08-21 20:33:21,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-08-21 20:33:21,003 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:33:21,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-08-21 20:33:21,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2020-08-21 20:33:21,004 INFO L87 Difference]: Start difference. First operand 391 states and 590 transitions. Second operand 20 states. [2020-08-21 20:33:22,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:33:22,115 INFO L93 Difference]: Finished difference Result 654 states and 1066 transitions. [2020-08-21 20:33:22,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-08-21 20:33:22,116 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 572 [2020-08-21 20:33:22,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:33:22,121 INFO L225 Difference]: With dead ends: 654 [2020-08-21 20:33:22,121 INFO L226 Difference]: Without dead ends: 237 [2020-08-21 20:33:22,132 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 605 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=333, Invalid=2117, Unknown=0, NotChecked=0, Total=2450 [2020-08-21 20:33:22,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2020-08-21 20:33:22,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 186. [2020-08-21 20:33:22,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 186 states. [2020-08-21 20:33:22,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 264 transitions. [2020-08-21 20:33:22,148 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 264 transitions. Word has length 572 [2020-08-21 20:33:22,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:33:22,149 INFO L479 AbstractCegarLoop]: Abstraction has 186 states and 264 transitions. [2020-08-21 20:33:22,149 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-08-21 20:33:22,149 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 264 transitions. [2020-08-21 20:33:22,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2020-08-21 20:33:22,152 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:33:22,152 INFO L422 BasicCegarLoop]: trace histogram [32, 32, 31, 31, 26, 25, 16, 16, 16, 16, 16, 16, 16, 15, 15, 15, 15, 15, 15, 15, 11, 9, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 20:33:22,153 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-08-21 20:33:22,153 INFO L427 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:33:22,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:33:22,153 INFO L82 PathProgramCache]: Analyzing trace with hash -1740376526, now seen corresponding path program 11 times [2020-08-21 20:33:22,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:33:22,156 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [351298362] [2020-08-21 20:33:22,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:33:22,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:22,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:33:22,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:22,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 20:33:22,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:22,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:22,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:22,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:22,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:22,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:22,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:22,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:22,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:22,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:22,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:22,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:22,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:22,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:22,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:22,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:22,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:22,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:22,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:22,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:22,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:22,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:22,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:22,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:22,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:22,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:22,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:22,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:22,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:22,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:22,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:22,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:22,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:22,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:22,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:22,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 20:33:22,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:22,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:22,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:22,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:22,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:22,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:22,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:22,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:22,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:22,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:22,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:22,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:22,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:22,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:22,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:22,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:22,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:23,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-21 20:33:23,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:23,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:23,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:23,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:23,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:23,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:23,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:23,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:23,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:23,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:23,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:23,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:23,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:23,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:23,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:23,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:23,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:23,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:23,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:23,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:23,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:23,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:23,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:23,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:23,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:23,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:23,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:23,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:23,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:23,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-08-21 20:33:23,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:23,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:23,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:23,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:23,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:23,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:23,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:23,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:23,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:23,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:23,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:23,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:23,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:23,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:23,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:23,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:23,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:23,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:23,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:23,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:23,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:23,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:23,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:23,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:23,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:23,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:23,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:23,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:23,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:23,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:23,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:23,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 20:33:23,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:23,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:23,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:23,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:23,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:23,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:23,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:23,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:23,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:23,898 INFO L134 CoverageAnalysis]: Checked inductivity of 5369 backedges. 1102 proven. 902 refuted. 0 times theorem prover too weak. 3365 trivial. 0 not checked. [2020-08-21 20:33:23,902 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [351298362] [2020-08-21 20:33:23,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 20:33:23,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-08-21 20:33:23,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079264841] [2020-08-21 20:33:23,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-08-21 20:33:23,906 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:33:23,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-08-21 20:33:23,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=398, Unknown=0, NotChecked=0, Total=462 [2020-08-21 20:33:23,907 INFO L87 Difference]: Start difference. First operand 186 states and 264 transitions. Second operand 22 states. [2020-08-21 20:33:24,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:33:24,867 INFO L93 Difference]: Finished difference Result 411 states and 644 transitions. [2020-08-21 20:33:24,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-08-21 20:33:24,867 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 436 [2020-08-21 20:33:24,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:33:24,871 INFO L225 Difference]: With dead ends: 411 [2020-08-21 20:33:24,871 INFO L226 Difference]: Without dead ends: 239 [2020-08-21 20:33:24,874 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=232, Invalid=1408, Unknown=0, NotChecked=0, Total=1640 [2020-08-21 20:33:24,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2020-08-21 20:33:24,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 225. [2020-08-21 20:33:24,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-08-21 20:33:24,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 330 transitions. [2020-08-21 20:33:24,908 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 330 transitions. Word has length 436 [2020-08-21 20:33:24,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:33:24,909 INFO L479 AbstractCegarLoop]: Abstraction has 225 states and 330 transitions. [2020-08-21 20:33:24,909 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-08-21 20:33:24,909 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 330 transitions. [2020-08-21 20:33:24,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2020-08-21 20:33:24,916 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:33:24,916 INFO L422 BasicCegarLoop]: trace histogram [34, 34, 33, 33, 27, 27, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 11, 10, 7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 20:33:24,917 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-08-21 20:33:24,917 INFO L427 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:33:24,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:33:24,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1326629730, now seen corresponding path program 12 times [2020-08-21 20:33:24,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:33:24,918 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [369662837] [2020-08-21 20:33:24,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:33:25,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:25,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:33:25,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:25,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 20:33:25,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:25,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:25,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:25,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:25,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:25,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:25,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:26,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:26,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:26,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:26,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:26,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:26,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:26,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:26,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:26,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:26,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:26,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:26,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:26,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:26,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:26,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:26,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:26,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:26,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:26,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:26,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:26,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:26,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:26,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:26,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:26,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:26,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:26,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:26,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:26,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 20:33:26,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:27,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:27,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:27,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:27,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:27,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:27,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:27,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:27,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-21 20:33:27,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:27,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:27,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:27,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:27,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:27,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:27,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:27,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:27,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:27,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:27,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:27,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:27,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:27,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:27,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-08-21 20:33:27,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:27,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:27,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:27,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:27,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:27,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:27,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:27,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:27,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:27,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:27,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:27,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:27,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:27,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:27,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:27,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 20:33:27,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:27,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:27,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:27,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:27,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:27,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:27,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:27,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:27,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:27,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:28,501 INFO L134 CoverageAnalysis]: Checked inductivity of 6082 backedges. 0 proven. 2033 refuted. 0 times theorem prover too weak. 4049 trivial. 0 not checked. [2020-08-21 20:33:28,501 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [369662837] [2020-08-21 20:33:28,501 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 20:33:28,502 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2020-08-21 20:33:28,502 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958917571] [2020-08-21 20:33:28,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 40 states [2020-08-21 20:33:28,503 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:33:28,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-08-21 20:33:28,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1483, Unknown=0, NotChecked=0, Total=1560 [2020-08-21 20:33:28,504 INFO L87 Difference]: Start difference. First operand 225 states and 330 transitions. Second operand 40 states. [2020-08-21 20:33:29,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:33:29,785 INFO L93 Difference]: Finished difference Result 233 states and 343 transitions. [2020-08-21 20:33:29,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-08-21 20:33:29,786 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 463 [2020-08-21 20:33:29,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:33:29,790 INFO L225 Difference]: With dead ends: 233 [2020-08-21 20:33:29,790 INFO L226 Difference]: Without dead ends: 229 [2020-08-21 20:33:29,791 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=125, Invalid=2527, Unknown=0, NotChecked=0, Total=2652 [2020-08-21 20:33:29,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2020-08-21 20:33:29,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 225. [2020-08-21 20:33:29,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-08-21 20:33:29,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 330 transitions. [2020-08-21 20:33:29,808 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 330 transitions. Word has length 463 [2020-08-21 20:33:29,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:33:29,808 INFO L479 AbstractCegarLoop]: Abstraction has 225 states and 330 transitions. [2020-08-21 20:33:29,809 INFO L480 AbstractCegarLoop]: Interpolant automaton has 40 states. [2020-08-21 20:33:29,809 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 330 transitions. [2020-08-21 20:33:29,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2020-08-21 20:33:29,813 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:33:29,813 INFO L422 BasicCegarLoop]: trace histogram [38, 38, 35, 35, 30, 29, 19, 19, 19, 19, 19, 19, 19, 17, 17, 17, 17, 17, 17, 17, 13, 10, 8, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 20:33:29,814 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-08-21 20:33:29,814 INFO L427 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:33:29,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:33:29,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1638954211, now seen corresponding path program 13 times [2020-08-21 20:33:29,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:33:29,815 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [520907342] [2020-08-21 20:33:29,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:33:29,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:33:30,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 20:33:30,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:30,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:30,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:30,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:30,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:30,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:30,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:30,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:30,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:30,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:30,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:30,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:30,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:30,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:30,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:30,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:30,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:30,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 20:33:30,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:30,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:30,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:30,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:30,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:30,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:30,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:30,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:30,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-21 20:33:30,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:30,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:30,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:30,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:30,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:30,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:30,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:30,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:30,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:30,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:30,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:30,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:30,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:30,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:30,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-08-21 20:33:30,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:30,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:30,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:30,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:30,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,674 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:30,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:30,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:30,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:30,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:30,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:30,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:30,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:30,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:30,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:30,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:30,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 20:33:30,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:30,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:30,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:30,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:30,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:30,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:30,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:30,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:30,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:30,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:30,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:30,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:30,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:30,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:30,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:30,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:31,150 INFO L134 CoverageAnalysis]: Checked inductivity of 7261 backedges. 1340 proven. 1409 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2020-08-21 20:33:31,150 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [520907342] [2020-08-21 20:33:31,150 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 20:33:31,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-08-21 20:33:31,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37085287] [2020-08-21 20:33:31,151 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-08-21 20:33:31,152 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:33:31,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-08-21 20:33:31,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=474, Unknown=0, NotChecked=0, Total=552 [2020-08-21 20:33:31,152 INFO L87 Difference]: Start difference. First operand 225 states and 330 transitions. Second operand 24 states. [2020-08-21 20:33:32,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:33:32,584 INFO L93 Difference]: Finished difference Result 498 states and 834 transitions. [2020-08-21 20:33:32,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-08-21 20:33:32,585 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 504 [2020-08-21 20:33:32,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:33:32,590 INFO L225 Difference]: With dead ends: 498 [2020-08-21 20:33:32,590 INFO L226 Difference]: Without dead ends: 286 [2020-08-21 20:33:32,594 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1009 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=505, Invalid=3035, Unknown=0, NotChecked=0, Total=3540 [2020-08-21 20:33:32,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-08-21 20:33:32,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 242. [2020-08-21 20:33:32,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 242 states. [2020-08-21 20:33:32,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 357 transitions. [2020-08-21 20:33:32,630 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 357 transitions. Word has length 504 [2020-08-21 20:33:32,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:33:32,630 INFO L479 AbstractCegarLoop]: Abstraction has 242 states and 357 transitions. [2020-08-21 20:33:32,631 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-08-21 20:33:32,631 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 357 transitions. [2020-08-21 20:33:32,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2020-08-21 20:33:32,636 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:33:32,636 INFO L422 BasicCegarLoop]: trace histogram [40, 40, 37, 37, 31, 31, 20, 20, 20, 20, 20, 20, 20, 18, 18, 18, 18, 18, 18, 18, 13, 11, 9, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 20:33:32,636 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-08-21 20:33:32,636 INFO L427 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:33:32,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:33:32,637 INFO L82 PathProgramCache]: Analyzing trace with hash -1112347357, now seen corresponding path program 14 times [2020-08-21 20:33:32,637 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:33:32,637 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [873693452] [2020-08-21 20:33:32,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:33:32,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:32,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:33:32,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:32,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 20:33:32,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:32,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:32,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:33,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:33,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:33,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:33,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:33,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:33,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:33,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:33,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:33,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:33,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:33,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:33,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:33,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:33,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:33,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:33,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:33,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 20:33:33,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:33,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:33,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:33,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:33,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:33,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:33,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:33,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:33,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-21 20:33:33,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:33,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:33,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:33,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:33,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:33,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:33,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:33,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:33,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-08-21 20:33:33,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:33,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:33,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:33,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:33,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:33,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:33,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:33,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:33,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:33,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:33,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:33,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:33,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2020-08-21 20:33:33,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:33,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:33,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:33,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:33,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:33,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:33,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:33,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:33,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:33,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:33,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:33,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:33,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:33,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:33,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:33,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 20:33:33,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:33,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:33,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:33,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:33,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:33,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:33,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:33,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:33,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:33,977 INFO L134 CoverageAnalysis]: Checked inductivity of 8086 backedges. 547 proven. 1475 refuted. 0 times theorem prover too weak. 6064 trivial. 0 not checked. [2020-08-21 20:33:33,977 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [873693452] [2020-08-21 20:33:33,977 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 20:33:33,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-08-21 20:33:33,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641569837] [2020-08-21 20:33:33,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-21 20:33:33,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:33:33,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-21 20:33:33,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-08-21 20:33:33,979 INFO L87 Difference]: Start difference. First operand 242 states and 357 transitions. Second operand 16 states. [2020-08-21 20:33:34,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:33:34,582 INFO L93 Difference]: Finished difference Result 482 states and 736 transitions. [2020-08-21 20:33:34,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-08-21 20:33:34,582 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 531 [2020-08-21 20:33:34,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:33:34,586 INFO L225 Difference]: With dead ends: 482 [2020-08-21 20:33:34,586 INFO L226 Difference]: Without dead ends: 254 [2020-08-21 20:33:34,588 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=132, Invalid=738, Unknown=0, NotChecked=0, Total=870 [2020-08-21 20:33:34,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-08-21 20:33:34,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 241. [2020-08-21 20:33:34,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-08-21 20:33:34,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 350 transitions. [2020-08-21 20:33:34,605 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 350 transitions. Word has length 531 [2020-08-21 20:33:34,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:33:34,605 INFO L479 AbstractCegarLoop]: Abstraction has 241 states and 350 transitions. [2020-08-21 20:33:34,605 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-21 20:33:34,606 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 350 transitions. [2020-08-21 20:33:34,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 859 [2020-08-21 20:33:34,613 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:33:34,614 INFO L422 BasicCegarLoop]: trace histogram [63, 63, 62, 62, 51, 50, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 20, 19, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 20:33:34,614 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-08-21 20:33:34,615 INFO L427 AbstractCegarLoop]: === Iteration 27 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:33:34,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:33:34,615 INFO L82 PathProgramCache]: Analyzing trace with hash 1633952637, now seen corresponding path program 15 times [2020-08-21 20:33:34,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:33:34,616 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1893174528] [2020-08-21 20:33:34,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:33:34,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:33:35,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 20:33:35,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:35,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:35,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:35,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:35,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:35,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:35,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:35,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:35,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:35,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:35,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:35,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:35,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:35,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:35,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:35,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:35,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:35,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:35,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 20:33:35,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:35,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:35,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:35,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:35,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:35,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:35,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:35,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:35,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-21 20:33:35,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:35,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:35,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:35,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:35,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:35,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:35,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:35,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:35,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:35,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:35,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:35,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:35,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:35,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:35,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-08-21 20:33:35,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:35,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:35,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:35,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:35,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:35,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:35,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:35,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:35,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:35,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:35,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:35,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:35,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:35,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:35,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:35,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 20:33:35,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:35,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:35,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:35,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:35,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:35,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:35,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:35,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:35,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:35,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2020-08-21 20:33:36,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:36,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:36,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:36,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:36,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:36,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:36,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:36,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:36,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:36,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:36,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:36,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:36,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:36,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:36,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:36,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:36,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:36,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 20:33:36,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:36,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:36,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:36,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:36,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:36,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:36,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:36,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:36,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-21 20:33:36,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:36,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:36,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:36,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:36,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:36,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:36,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:36,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:36,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:36,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:36,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:36,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:36,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:36,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:36,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-08-21 20:33:36,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:36,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:36,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:36,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:36,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:36,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:36,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:36,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:36,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:36,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:36,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:36,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:36,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:36,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:36,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:36,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:37,383 INFO L134 CoverageAnalysis]: Checked inductivity of 21596 backedges. 2988 proven. 3025 refuted. 0 times theorem prover too weak. 15583 trivial. 0 not checked. [2020-08-21 20:33:37,383 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1893174528] [2020-08-21 20:33:37,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 20:33:37,384 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-08-21 20:33:37,384 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728274668] [2020-08-21 20:33:37,385 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-08-21 20:33:37,385 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:33:37,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-08-21 20:33:37,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2020-08-21 20:33:37,386 INFO L87 Difference]: Start difference. First operand 241 states and 350 transitions. Second operand 22 states. [2020-08-21 20:33:38,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:33:38,957 INFO L93 Difference]: Finished difference Result 506 states and 839 transitions. [2020-08-21 20:33:38,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2020-08-21 20:33:38,958 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 858 [2020-08-21 20:33:38,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:33:38,963 INFO L225 Difference]: With dead ends: 506 [2020-08-21 20:33:38,963 INFO L226 Difference]: Without dead ends: 274 [2020-08-21 20:33:38,967 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 863 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=420, Invalid=2886, Unknown=0, NotChecked=0, Total=3306 [2020-08-21 20:33:38,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-08-21 20:33:38,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 257. [2020-08-21 20:33:38,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 257 states. [2020-08-21 20:33:38,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 363 transitions. [2020-08-21 20:33:38,989 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 363 transitions. Word has length 858 [2020-08-21 20:33:38,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:33:38,990 INFO L479 AbstractCegarLoop]: Abstraction has 257 states and 363 transitions. [2020-08-21 20:33:38,990 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-08-21 20:33:38,991 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 363 transitions. [2020-08-21 20:33:38,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 641 [2020-08-21 20:33:38,996 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 20:33:38,996 INFO L422 BasicCegarLoop]: trace histogram [47, 47, 46, 46, 38, 37, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 15, 14, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 20:33:38,997 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-08-21 20:33:38,997 INFO L427 AbstractCegarLoop]: === Iteration 28 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 20:33:38,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 20:33:38,997 INFO L82 PathProgramCache]: Analyzing trace with hash -1983594753, now seen corresponding path program 16 times [2020-08-21 20:33:38,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 20:33:38,998 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2146476676] [2020-08-21 20:33:38,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 20:33:39,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 20:33:39,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-21 20:33:39,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:39,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:39,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:39,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:39,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:39,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:39,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:39,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:39,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:39,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:39,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:39,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:39,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:39,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:39,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:39,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:39,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:39,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:39,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 20:33:39,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:39,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:39,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:39,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:39,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:39,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:39,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:39,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:39,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-08-21 20:33:39,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:39,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:39,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:39,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:39,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:39,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:39,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:39,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:39,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:39,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:39,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:39,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:39,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:39,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:39,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:39,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-08-21 20:33:40,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:40,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:40,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:40,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:40,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:40,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:40,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:40,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:40,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:40,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:40,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:40,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:40,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:40,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:40,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:40,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 20:33:40,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:40,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:40,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:40,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:40,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:40,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:40,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:40,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:40,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2020-08-21 20:33:40,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:40,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:40,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:40,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:40,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:40,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:40,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:40,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:40,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:40,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:40,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-08-21 20:33:40,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:40,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:40,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:40,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:40,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-08-21 20:33:40,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:40,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:40,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:40,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:40,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-08-21 20:33:40,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-08-21 20:33:40,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-08-21 20:33:40,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-08-21 20:33:40,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 20:33:40,616 INFO L134 CoverageAnalysis]: Checked inductivity of 11857 backedges. 379 proven. 1583 refuted. 0 times theorem prover too weak. 9895 trivial. 0 not checked. [2020-08-21 20:33:40,616 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2146476676] [2020-08-21 20:33:40,616 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 20:33:40,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-08-21 20:33:40,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7829309] [2020-08-21 20:33:40,628 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-08-21 20:33:40,628 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 20:33:40,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-08-21 20:33:40,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2020-08-21 20:33:40,629 INFO L87 Difference]: Start difference. First operand 257 states and 363 transitions. Second operand 14 states. [2020-08-21 20:33:41,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 20:33:41,075 INFO L93 Difference]: Finished difference Result 279 states and 401 transitions. [2020-08-21 20:33:41,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-08-21 20:33:41,076 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 640 [2020-08-21 20:33:41,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 20:33:41,077 INFO L225 Difference]: With dead ends: 279 [2020-08-21 20:33:41,078 INFO L226 Difference]: Without dead ends: 0 [2020-08-21 20:33:41,079 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=98, Invalid=364, Unknown=0, NotChecked=0, Total=462 [2020-08-21 20:33:41,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-21 20:33:41,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-21 20:33:41,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-21 20:33:41,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-21 20:33:41,080 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 640 [2020-08-21 20:33:41,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 20:33:41,080 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-21 20:33:41,081 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-08-21 20:33:41,081 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-21 20:33:41,081 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-21 20:33:41,081 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-08-21 20:33:41,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-21 20:33:43,520 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 7 [2020-08-21 20:33:43,704 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 1 [2020-08-21 20:33:43,853 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 1 [2020-08-21 20:33:44,520 WARN L193 SmtUtils]: Spent 657.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 27 [2020-08-21 20:33:44,810 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 7